International Flavors & Fragrances Inc. vs LyondellBasell Industries NV Ordinary Shares Class A (Netherlands)
WatchlistIFF / LYBPrices through Oct 22, 2026
Why these are rivals: #1 and #2 by market value ($23B vs $21B) with SEC SIC 2860 (Industrial Organic Chemicals).
Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.
- Co-movement: daily return correlation, 252 sessions: -0.13 (needs >= 0.60)
- Mean reversion: ADF t-statistic of the spread: -1.77 (needs <= -2.873 (5% critical value))
Business leadership
LYB is the larger business
Annual revenue reported to the SEC. Scale, not market share.
| Year | IFF | LYB | Larger |
|---|---|---|---|
| 2025 | $10.9B | $30.2B | LYB |
| 2024 | $11.5B | $33.4B | LYB |
| 2023 | $11.5B | $33.3B | LYB |
| 2022 | $12.4B | $50.5B | LYB |
| 2021 | $11.7B | $46.2B | LYB |
| 2020 | $5.1B | $27.8B | LYB |
LYB led in every year with figures for both. Market value: IFF $23.2B, LYB $20.6B.
Stock leadership
IFF is ahead now
Measured against the pair's own last 252 trading days.
IFF leads LYB by 0.71 standard deviations: +12.1% over its usual price ratio. 2 lead switches in the last year.
| Price change | 3 mo | 6 mo | 12 mo |
|---|---|---|---|
| IFF | +23.6% | +32.3% | +44.3% |
| LYB | +8.4% | -7.6% | +44.6% |
Relationship
Not a measured twin today
Only these tests can make a pair tradable on paper.
- Pass
- Aligned sessions: 2521 (needs >= 254)
- Fail
- Co-movement: daily return correlation, 252 sessions: -0.13 (needs >= 0.60)
- Fail
- Mean reversion: ADF t-statistic of the spread: -1.77 (needs <= -2.873 (5% critical value))
- Pass
- Speed: half-life of the spread, sessions: 25.69 (needs <= 63)
- Data
- Both stocks current
The twins over two years
Prices side by side, and the gap between them
IFF International Flavors & Fragrances Inc. LYB LyondellBasell Industries NV Ordinary Shares Class A (Netherlands)Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
Spread z-score: IFF relative to LYB, against the 252 sessions before each day. Above 0: IFF ahead; below 0: LYB ahead. Lines at +/-2 (idea) and +/-4 (stop).
Data table (504 sessions)
| Date | IFF index | LYB index | z | Ahead |
|---|---|---|---|---|
| 2026-10-22 | 89.79 | 71.45 | +0.71 | IFF ahead |
| 2026-10-21 | 87.11 | 69.16 | +0.73 | IFF ahead |
| 2026-10-20 | 87.28 | 69.91 | +0.67 | IFF ahead |
| 2026-10-19 | 87.04 | 69.64 | +0.68 | IFF ahead |
| 2026-10-16 | 86.78 | 69.96 | +0.64 | IFF ahead |
| 2026-10-15 | 86.40 | 68.50 | +0.74 | IFF ahead |
| 2026-10-14 | 85.74 | 66.86 | +0.85 | IFF ahead |
| 2026-10-13 | 84.40 | 65.59 | +0.88 | IFF ahead |
| 2026-10-12 | 81.30 | 64.94 | +0.71 | IFF ahead |
| 2026-10-09 | 80.91 | 65.61 | +0.62 | IFF ahead |
| 2026-10-08 | 81.00 | 65.95 | +0.60 | IFF ahead |
| 2026-10-07 | 80.49 | 63.93 | +0.76 | IFF ahead |
| 2026-10-06 | 80.31 | 64.41 | +0.70 | IFF ahead |
| 2026-10-05 | 79.67 | 64.73 | +0.62 | IFF ahead |
| 2026-10-02 | 78.87 | 64.03 | +0.63 | IFF ahead |
| 2026-10-01 | 79.54 | 63.15 | +0.77 | IFF ahead |
| 2026-09-30 | 79.89 | 62.82 | +0.84 | IFF ahead |
| 2026-09-29 | 81.58 | 63.59 | +0.90 | IFF ahead |
| 2026-09-28 | 82.03 | 63.69 | +0.93 | IFF ahead |
| 2026-09-25 | 82.00 | 63.55 | +0.95 | IFF ahead |
| 2026-09-24 | 82.15 | 65.78 | +0.75 | IFF ahead |
| 2026-09-23 | 82.02 | 65.55 | +0.76 | IFF ahead |
| 2026-09-22 | 82.10 | 64.75 | +0.85 | IFF ahead |
| 2026-09-21 | 80.00 | 65.84 | +0.58 | IFF ahead |
| 2026-09-18 | 79.39 | 67.69 | +0.36 | near the usual relationship |
| 2026-09-17 | 81.25 | 70.23 | +0.28 | near the usual relationship |
| 2026-09-16 | 80.77 | 70.94 | +0.17 | near the usual relationship |
| 2026-09-15 | 80.61 | 71.52 | +0.11 | near the usual relationship |
| 2026-09-14 | 79.84 | 68.59 | +0.32 | near the usual relationship |
| 2026-09-11 | 80.01 | 69.61 | +0.24 | near the usual relationship |
| 2026-09-10 | 80.43 | 70.28 | +0.22 | near the usual relationship |
| 2026-09-09 | 80.68 | 70.51 | +0.22 | near the usual relationship |
| 2026-09-08 | 81.93 | 70.60 | +0.31 | near the usual relationship |
| 2026-09-04 | 82.63 | 69.43 | +0.47 | near the usual relationship |
| 2026-09-03 | 82.74 | 70.78 | +0.36 | near the usual relationship |
| 2026-09-02 | 83.20 | 72.76 | +0.22 | near the usual relationship |
| 2026-09-01 | 82.09 | 71.23 | +0.28 | near the usual relationship |
| 2026-08-31 | 82.61 | 71.13 | +0.33 | near the usual relationship |
| 2026-08-28 | 84.16 | 69.59 | +0.59 | IFF ahead |
| 2026-08-27 | 83.11 | 68.93 | +0.58 | IFF ahead |
| 2026-08-26 | 83.37 | 68.44 | +0.65 | IFF ahead |
| 2026-08-25 | 83.41 | 68.37 | +0.66 | IFF ahead |
| 2026-08-24 | 82.11 | 71.26 | +0.30 | near the usual relationship |
| 2026-08-21 | 80.65 | 73.81 | -0.04 | near the usual relationship |
| 2026-08-20 | 79.80 | 74.43 | -0.17 | near the usual relationship |
| 2026-08-19 | 79.74 | 72.20 | +0.03 | near the usual relationship |
| 2026-08-18 | 77.51 | 71.41 | -0.08 | near the usual relationship |
| 2026-08-17 | 78.31 | 70.75 | +0.04 | near the usual relationship |
| 2026-08-14 | 80.56 | 69.69 | +0.32 | near the usual relationship |
| 2026-08-13 | 80.44 | 68.20 | +0.45 | near the usual relationship |
| 2026-08-12 | 80.24 | 68.64 | +0.39 | near the usual relationship |
| 2026-08-11 | 81.34 | 69.93 | +0.36 | near the usual relationship |
| 2026-08-10 | 81.43 | 68.48 | +0.51 | IFF ahead |
| 2026-08-07 | 82.19 | 65.13 | +0.89 | IFF ahead |
| 2026-08-06 | 80.91 | 67.15 | +0.59 | IFF ahead |
| 2026-08-05 | 84.28 | 64.52 | +1.12 | IFF ahead |
| 2026-08-04 | 77.41 | 66.79 | +0.35 | near the usual relationship |
| 2026-08-03 | 77.11 | 66.26 | +0.38 | near the usual relationship |
| 2026-07-31 | 75.81 | 67.85 | +0.11 | near the usual relationship |
| 2026-07-30 | 76.06 | 66.06 | +0.31 | near the usual relationship |
| 2026-07-29 | 76.20 | 66.12 | +0.32 | near the usual relationship |
| 2026-07-28 | 75.84 | 63.64 | +0.54 | IFF ahead |
| 2026-07-27 | 73.11 | 64.07 | +0.26 | near the usual relationship |
| 2026-07-24 | 72.67 | 65.93 | +0.04 | near the usual relationship |
| 2026-07-23 | 70.59 | 67.46 | -0.30 | near the usual relationship |
| 2026-07-22 | 73.88 | 68.12 | -0.06 | near the usual relationship |
| 2026-07-21 | 72.98 | 66.88 | -0.02 | near the usual relationship |
| 2026-07-20 | 73.94 | 66.38 | +0.11 | near the usual relationship |
| 2026-07-17 | 74.83 | 64.67 | +0.36 | near the usual relationship |
| 2026-07-16 | 74.26 | 63.18 | +0.46 | near the usual relationship |
| 2026-07-15 | 72.07 | 63.39 | +0.25 | near the usual relationship |
| 2026-07-14 | 71.45 | 64.00 | +0.14 | near the usual relationship |
| 2026-07-13 | 71.87 | 63.74 | +0.20 | near the usual relationship |
| 2026-07-10 | 74.19 | 61.59 | +0.63 | IFF ahead |
| 2026-07-09 | 75.15 | 60.54 | +0.83 | IFF ahead |
| 2026-07-08 | 75.54 | 60.90 | +0.83 | IFF ahead |
| 2026-07-07 | 78.31 | 59.68 | +1.20 | IFF ahead |
| 2026-07-06 | 79.21 | 57.90 | +1.48 | IFF ahead |
| 2026-07-02 | 80.22 | 58.32 | +1.53 | IFF ahead |
| 2026-07-01 | 77.66 | 57.47 | +1.43 | IFF ahead |
| 2026-06-30 | 75.81 | 57.55 | +1.27 | IFF ahead |
| 2026-06-29 | 73.21 | 58.61 | +0.92 | IFF ahead |
| 2026-06-26 | 73.06 | 60.91 | +0.66 | IFF ahead |
| 2026-06-25 | 71.85 | 61.03 | +0.54 | IFF ahead |
| 2026-06-24 | 72.56 | 61.34 | +0.57 | IFF ahead |
| 2026-06-23 | 71.49 | 62.96 | +0.30 | near the usual relationship |
| 2026-06-22 | 72.68 | 63.96 | +0.31 | near the usual relationship |
| 2026-06-18 | 73.42 | 65.66 | +0.20 | near the usual relationship |
| 2026-06-17 | 72.78 | 67.56 | -0.05 | near the usual relationship |
| 2026-06-16 | 74.50 | 68.41 | +0.02 | near the usual relationship |
| 2026-06-15 | 74.99 | 69.19 | -0.01 | near the usual relationship |
| 2026-06-12 | 74.90 | 70.59 | -0.15 | near the usual relationship |
| 2026-06-11 | 74.17 | 69.37 | -0.10 | near the usual relationship |
| 2026-06-10 | 71.03 | 71.21 | -0.56 | LYB ahead |
| 2026-06-09 | 72.52 | 69.56 | -0.28 | near the usual relationship |
| 2026-06-08 | 69.47 | 70.42 | -0.65 | LYB ahead |
| 2026-06-05 | 69.87 | 70.50 | -0.62 | LYB ahead |
| 2026-06-04 | 70.08 | 72.34 | -0.78 | LYB ahead |
| 2026-06-03 | 70.39 | 73.56 | -0.86 | LYB ahead |
| 2026-06-02 | 70.09 | 73.57 | -0.90 | LYB ahead |
| 2026-06-01 | 71.06 | 73.39 | -0.80 | LYB ahead |
| 2026-05-29 | 72.78 | 72.85 | -0.60 | LYB ahead |
| 2026-05-28 | 74.67 | 74.71 | -0.60 | LYB ahead |
| 2026-05-27 | 73.68 | 73.96 | -0.62 | LYB ahead |
| 2026-05-26 | 72.60 | 75.43 | -0.86 | LYB ahead |
| 2026-05-22 | 72.04 | 76.21 | -0.98 | LYB ahead |
| 2026-05-21 | 72.01 | 76.60 | -1.03 | LYB ahead |
| 2026-05-20 | 71.22 | 77.93 | -1.23 | LYB ahead |
| 2026-05-19 | 68.89 | 79.83 | -1.62 | LYB ahead |
| 2026-05-18 | 70.53 | 81.03 | -1.58 | LYB ahead |
| 2026-05-15 | 69.95 | 82.04 | -1.74 | LYB ahead |
| 2026-05-14 | 72.81 | 80.09 | -1.31 | LYB ahead |
| 2026-05-13 | 74.14 | 80.60 | -1.24 | LYB ahead |
| 2026-05-12 | 75.09 | 81.22 | -1.22 | LYB ahead |
| 2026-05-11 | 75.36 | 80.37 | -1.13 | LYB ahead |
| 2026-05-08 | 77.56 | 78.43 | -0.77 | LYB ahead |
| 2026-05-07 | 74.89 | 78.16 | -0.99 | LYB ahead |
| 2026-05-06 | 79.36 | 80.31 | -0.79 | LYB ahead |
| 2026-05-05 | 67.72 | 84.99 | -2.30 | LYB ahead |
| 2026-05-04 | 67.07 | 83.11 | -2.24 | LYB ahead |
| 2026-05-01 | 67.76 | 81.97 | -2.10 | LYB ahead |
| 2026-04-30 | 67.18 | 81.54 | -2.15 | LYB ahead |
| 2026-04-29 | 65.92 | 80.11 | -2.19 | LYB ahead |
| 2026-04-28 | 67.72 | 78.13 | -1.84 | LYB ahead |
| 2026-04-27 | 67.93 | 77.63 | -1.79 | LYB ahead |
| 2026-04-24 | 68.08 | 76.37 | -1.67 | LYB ahead |
| 2026-04-23 | 67.89 | 77.30 | -1.80 | LYB ahead |
| 2026-04-22 | 68.11 | 78.70 | -1.93 | LYB ahead |
| 2026-04-21 | 69.30 | 78.06 | -1.75 | LYB ahead |
| 2026-04-20 | 71.23 | 74.96 | -1.25 | LYB ahead |
| 2026-04-17 | 72.61 | 72.43 | -0.86 | LYB ahead |
| 2026-04-16 | 68.96 | 82.29 | -2.23 | LYB ahead |
| 2026-04-15 | 68.45 | 79.93 | -2.10 | LYB ahead |
| 2026-04-14 | 69.46 | 80.06 | -2.02 | LYB ahead |
| 2026-04-13 | 68.61 | 82.53 | -2.38 | LYB ahead |
| 2026-04-10 | 69.40 | 80.58 | -2.13 | LYB ahead |
| 2026-04-09 | 69.98 | 78.99 | -1.93 | LYB ahead |
| 2026-04-08 | 70.59 | 81.12 | -2.10 | LYB ahead |
| 2026-04-07 | 66.97 | 87.73 | -3.22 | LYB ahead |
| 2026-04-06 | 68.74 | 85.93 | -2.88 | LYB ahead |
| 2026-04-02 | 69.31 | 87.00 | -2.96 | LYB ahead |
| 2026-04-01 | 69.44 | 83.85 | -2.67 | LYB ahead |
| 2026-03-31 | 69.43 | 88.05 | -3.14 | LYB ahead |
| 2026-03-30 | 67.90 | 90.04 | -3.61 | LYB ahead |
| 2026-03-27 | 67.95 | 87.93 | -3.46 | LYB ahead |
| 2026-03-26 | 68.09 | 84.95 | -3.19 | LYB ahead |
| 2026-03-25 | 67.67 | 84.37 | -3.24 | LYB ahead |
| 2026-03-24 | 64.98 | 83.08 | -3.55 | LYB ahead |
| 2026-03-23 | 65.20 | 78.12 | -2.98 | LYB ahead |
| 2026-03-20 | 63.75 | 80.14 | -3.50 | LYB ahead |
| 2026-03-19 | 65.20 | 81.51 | -3.51 | LYB ahead |
| 2026-03-18 | 65.37 | 82.19 | -3.65 | LYB ahead |
| 2026-03-17 | 68.21 | 77.82 | -2.69 | LYB ahead |
| 2026-03-16 | 67.07 | 77.69 | -2.88 | LYB ahead |
| 2026-03-13 | 66.61 | 79.03 | -3.17 | LYB ahead |
| 2026-03-12 | 67.00 | 81.24 | -3.46 | LYB ahead |
| 2026-03-11 | 65.76 | 73.64 | -2.63 | LYB ahead |
| 2026-03-10 | 69.71 | 71.71 | -1.73 | LYB ahead |
| 2026-03-09 | 70.01 | 73.04 | -1.87 | LYB ahead |
| 2026-03-06 | 70.59 | 73.35 | -1.82 | LYB ahead |
| 2026-03-05 | 72.13 | 72.01 | -1.40 | LYB ahead |
| 2026-03-04 | 74.82 | 67.68 | -0.36 | near the usual relationship |
| 2026-03-03 | 75.75 | 63.62 | +0.41 | near the usual relationship |
| 2026-03-02 | 77.27 | 63.26 | +0.68 | IFF ahead |
| 2026-02-27 | 78.69 | 62.87 | +0.93 | IFF ahead |
| 2026-02-26 | 77.45 | 61.54 | +0.99 | IFF ahead |
| 2026-02-25 | 76.44 | 62.03 | +0.79 | IFF ahead |
| 2026-02-24 | 78.57 | 63.74 | +0.79 | IFF ahead |
| 2026-02-23 | 78.70 | 61.93 | +1.10 | IFF ahead |
| 2026-02-20 | 77.89 | 61.94 | +1.00 | IFF ahead |
| 2026-02-19 | 78.11 | 60.48 | +1.27 | IFF ahead |
| 2026-02-18 | 79.39 | 61.18 | +1.33 | IFF ahead |
| 2026-02-17 | 79.18 | 61.19 | +1.31 | IFF ahead |
| 2026-02-13 | 79.43 | 62.97 | +1.07 | IFF ahead |
| 2026-02-12 | 77.99 | 63.15 | +0.87 | IFF ahead |
| 2026-02-11 | 73.66 | 65.00 | +0.05 | near the usual relationship |
| 2026-02-10 | 73.45 | 63.02 | +0.32 | near the usual relationship |
| 2026-02-09 | 71.94 | 60.63 | +0.50 | IFF ahead |
| 2026-02-06 | 71.60 | 60.23 | +0.53 | IFF ahead |
| 2026-02-05 | 70.27 | 58.89 | +0.57 | IFF ahead |
| 2026-02-04 | 71.09 | 62.41 | +0.13 | near the usual relationship |
| 2026-02-03 | 67.35 | 58.42 | +0.25 | near the usual relationship |
| 2026-02-02 | 66.75 | 54.92 | +0.75 | IFF ahead |
| 2026-01-30 | 66.80 | 53.56 | +1.01 | IFF ahead |
| 2026-01-29 | 66.60 | 54.60 | +0.80 | IFF ahead |
| 2026-01-28 | 69.05 | 55.16 | +1.05 | IFF ahead |
| 2026-01-27 | 70.06 | 55.12 | +1.21 | IFF ahead |
| 2026-01-26 | 70.84 | 55.59 | +1.24 | IFF ahead |
| 2026-01-23 | 70.08 | 55.73 | +1.12 | IFF ahead |
| 2026-01-22 | 69.05 | 56.33 | +0.89 | IFF ahead |
| 2026-01-21 | 68.23 | 56.64 | +0.74 | IFF ahead |
| 2026-01-20 | 67.81 | 53.40 | +1.24 | IFF ahead |
| 2026-01-16 | 68.59 | 55.65 | +0.97 | IFF ahead |
| 2026-01-15 | 67.78 | 55.61 | +0.87 | IFF ahead |
| 2026-01-14 | 67.16 | 56.84 | +0.59 | IFF ahead |
| 2026-01-13 | 66.61 | 53.20 | +1.13 | IFF ahead |
| 2026-01-12 | 65.99 | 52.68 | +1.15 | IFF ahead |
| 2026-01-09 | 66.12 | 53.24 | +1.08 | IFF ahead |
| 2026-01-08 | 65.63 | 52.07 | +1.22 | IFF ahead |
| 2026-01-07 | 64.40 | 49.09 | +1.61 | IFF ahead |
| 2026-01-06 | 65.90 | 50.50 | +1.57 | IFF ahead |
| 2026-01-05 | 64.08 | 49.83 | +1.45 | IFF ahead |
| 2026-01-02 | 65.10 | 48.52 | +1.87 | IFF ahead |
| 2025-12-31 | 64.49 | 47.33 | +2.04 | IFF ahead |
| 2025-12-30 | 65.00 | 47.72 | +2.06 | IFF ahead |
| 2025-12-29 | 64.84 | 47.49 | +2.11 | IFF ahead |
| 2025-12-26 | 64.56 | 47.27 | +2.14 | IFF ahead |
| 2025-12-24 | 64.04 | 46.86 | +2.18 | IFF ahead |
| 2025-12-23 | 63.51 | 46.62 | +2.17 | IFF ahead |
| 2025-12-22 | 63.70 | 47.66 | +2.01 | IFF ahead |
| 2025-12-19 | 62.94 | 47.10 | +2.03 | IFF ahead |
| 2025-12-18 | 62.59 | 47.07 | +2.01 | IFF ahead |
| 2025-12-17 | 62.79 | 47.83 | +1.90 | IFF ahead |
| 2025-12-16 | 61.80 | 46.98 | +1.95 | IFF ahead |
| 2025-12-15 | 61.41 | 47.37 | +1.82 | IFF ahead |
| 2025-12-12 | 60.54 | 48.52 | +1.44 | IFF ahead |
| 2025-12-11 | 60.53 | 49.31 | +1.28 | IFF ahead |
| 2025-12-10 | 62.57 | 49.44 | +1.61 | IFF ahead |
| 2025-12-09 | 61.76 | 46.76 | +2.08 | IFF ahead |
| 2025-12-08 | 62.55 | 46.21 | +2.37 | IFF ahead |
| 2025-12-05 | 64.29 | 47.38 | +2.43 | IFF ahead |
| 2025-12-04 | 63.63 | 47.17 | +2.40 | IFF ahead |
| 2025-12-03 | 64.23 | 50.31 | +1.83 | IFF ahead |
| 2025-12-02 | 65.59 | 52.22 | +1.68 | IFF ahead |
| 2025-12-01 | 66.29 | 52.38 | +1.78 | IFF ahead |
| 2025-11-28 | 66.49 | 53.55 | +1.58 | IFF ahead |
| 2025-11-26 | 66.78 | 52.92 | +1.77 | IFF ahead |
| 2025-11-25 | 66.22 | 51.38 | +2.03 | IFF ahead |
| 2025-11-24 | 64.55 | 49.58 | +2.16 | IFF ahead |
| 2025-11-21 | 64.55 | 48.97 | +2.33 | IFF ahead |
| 2025-11-20 | 61.78 | 46.51 | +2.44 | IFF ahead |
| 2025-11-19 | 62.33 | 46.74 | +2.52 | IFF ahead |
| 2025-11-18 | 63.16 | 47.81 | +2.45 | IFF ahead |
| 2025-11-17 | 62.33 | 47.61 | +2.38 | IFF ahead |
| 2025-11-14 | 63.04 | 49.51 | +2.09 | IFF ahead |
| 2025-11-13 | 64.53 | 49.75 | +2.33 | IFF ahead |
| 2025-11-12 | 62.59 | 47.34 | +2.59 | IFF ahead |
| 2025-11-11 | 62.50 | 47.90 | +2.47 | IFF ahead |
| 2025-11-10 | 60.08 | 46.75 | +2.32 | IFF ahead |
| 2025-11-07 | 59.33 | 47.02 | +2.13 | IFF ahead |
| 2025-11-06 | 60.14 | 46.32 | +2.51 | IFF ahead |
| 2025-11-05 | 61.24 | 48.06 | +2.32 | IFF ahead |
| 2025-11-04 | 58.84 | 48.57 | +1.73 | IFF ahead |
| 2025-11-03 | 59.41 | 50.57 | +1.37 | IFF ahead |
| 2025-10-31 | 60.26 | 50.74 | +1.51 | IFF ahead |
| 2025-10-30 | 60.41 | 49.40 | +1.89 | IFF ahead |
| 2025-10-29 | 60.56 | 51.05 | +1.53 | IFF ahead |
| 2025-10-28 | 62.09 | 52.04 | +1.62 | IFF ahead |
| 2025-10-27 | 62.48 | 53.66 | +1.33 | IFF ahead |
| 2025-10-24 | 63.07 | 52.02 | +1.85 | IFF ahead |
| 2025-10-23 | 62.94 | 51.16 | +2.06 | IFF ahead |
| 2025-10-22 | 62.03 | 49.40 | +2.35 | IFF ahead |
| 2025-10-21 | 62.21 | 49.42 | +2.43 | IFF ahead |
| 2025-10-20 | 61.86 | 49.86 | +2.27 | IFF ahead |
| 2025-10-17 | 61.00 | 50.49 | +1.95 | IFF ahead |
| 2025-10-16 | 59.90 | 50.13 | +1.83 | IFF ahead |
| 2025-10-15 | 59.26 | 51.11 | +1.44 | IFF ahead |
| 2025-10-14 | 59.01 | 51.00 | +1.42 | IFF ahead |
| 2025-10-13 | 57.51 | 50.57 | +1.20 | IFF ahead |
| 2025-10-10 | 56.99 | 49.09 | +1.49 | IFF ahead |
| 2025-10-09 | 57.56 | 52.10 | +0.84 | IFF ahead |
| 2025-10-08 | 58.66 | 53.22 | +0.82 | IFF ahead |
| 2025-10-07 | 58.39 | 53.70 | +0.64 | IFF ahead |
| 2025-10-06 | 58.85 | 53.21 | +0.87 | IFF ahead |
| 2025-10-03 | 59.50 | 54.07 | +0.81 | IFF ahead |
| 2025-10-02 | 58.86 | 53.92 | +0.72 | IFF ahead |
| 2025-10-01 | 58.33 | 52.92 | +0.85 | IFF ahead |
| 2025-09-30 | 58.89 | 53.60 | +0.81 | IFF ahead |
| 2025-09-29 | 58.33 | 53.65 | +0.68 | IFF ahead |
| 2025-09-26 | 58.11 | 54.05 | +0.54 | IFF ahead |
| 2025-09-25 | 57.70 | 53.54 | +0.58 | IFF ahead |
| 2025-09-24 | 59.85 | 56.15 | +0.44 | near the usual relationship |
| 2025-09-23 | 59.70 | 55.06 | +0.67 | IFF ahead |
| 2025-09-22 | 59.52 | 55.85 | +0.45 | near the usual relationship |
| 2025-09-19 | 60.79 | 56.85 | +0.50 | IFF ahead |
| 2025-09-18 | 61.00 | 57.59 | +0.38 | near the usual relationship |
| 2025-09-17 | 60.61 | 58.50 | +0.10 | near the usual relationship |
| 2025-09-16 | 61.74 | 57.55 | +0.55 | IFF ahead |
| 2025-09-15 | 61.60 | 57.47 | +0.54 | IFF ahead |
| 2025-09-12 | 62.79 | 60.36 | +0.17 | near the usual relationship |
| 2025-09-11 | 63.49 | 60.63 | +0.25 | near the usual relationship |
| 2025-09-10 | 61.70 | 59.46 | +0.14 | near the usual relationship |
| 2025-09-09 | 62.27 | 59.45 | +0.26 | near the usual relationship |
| 2025-09-08 | 63.32 | 59.71 | +0.43 | near the usual relationship |
| 2025-09-05 | 63.19 | 60.20 | +0.30 | near the usual relationship |
| 2025-09-04 | 62.71 | 59.35 | +0.39 | near the usual relationship |
| 2025-09-03 | 62.88 | 59.23 | +0.46 | near the usual relationship |
| 2025-09-02 | 63.68 | 61.03 | +0.24 | near the usual relationship |
| 2025-08-29 | 64.60 | 61.59 | +0.32 | near the usual relationship |
| 2025-08-28 | 64.21 | 61.06 | +0.35 | near the usual relationship |
| 2025-08-27 | 63.90 | 61.51 | +0.21 | near the usual relationship |
| 2025-08-26 | 63.85 | 61.86 | +0.13 | near the usual relationship |
| 2025-08-25 | 64.25 | 62.36 | +0.12 | near the usual relationship |
| 2025-08-22 | 65.05 | 64.24 | -0.09 | near the usual relationship |
| 2025-08-21 | 63.28 | 60.63 | +0.29 | near the usual relationship |
| 2025-08-20 | 63.26 | 60.48 | +0.32 | near the usual relationship |
| 2025-08-19 | 63.00 | 58.83 | +0.61 | IFF ahead |
| 2025-08-18 | 62.50 | 57.88 | +0.72 | IFF ahead |
| 2025-08-15 | 62.99 | 58.35 | +0.72 | IFF ahead |
| 2025-08-14 | 62.89 | 58.27 | +0.72 | IFF ahead |
| 2025-08-13 | 63.65 | 57.85 | +0.96 | IFF ahead |
| 2025-08-12 | 61.76 | 54.95 | +1.22 | IFF ahead |
| 2025-08-11 | 60.73 | 52.84 | +1.49 | IFF ahead |
| 2025-08-08 | 60.82 | 53.62 | +1.35 | IFF ahead |
| 2025-08-07 | 61.46 | 54.84 | +1.22 | IFF ahead |
| 2025-08-06 | 63.31 | 54.16 | +1.72 | IFF ahead |
| 2025-08-05 | 67.58 | 56.81 | +1.95 | IFF ahead |
| 2025-08-04 | 67.13 | 55.63 | +2.14 | IFF ahead |
| 2025-08-01 | 66.49 | 58.39 | +1.47 | IFF ahead |
| 2025-07-31 | 67.97 | 63.32 | +0.77 | IFF ahead |
| 2025-07-30 | 68.68 | 64.32 | +0.72 | IFF ahead |
| 2025-07-29 | 71.57 | 68.29 | +0.50 | IFF ahead |
| 2025-07-28 | 71.99 | 68.73 | +0.50 | IFF ahead |
| 2025-07-25 | 73.33 | 69.96 | +0.52 | IFF ahead |
| 2025-07-24 | 72.61 | 66.35 | +1.03 | IFF ahead |
| 2025-07-23 | 74.12 | 73.47 | +0.09 | near the usual relationship |
| 2025-07-22 | 73.63 | 71.49 | +0.33 | near the usual relationship |
| 2025-07-21 | 72.97 | 68.48 | +0.73 | IFF ahead |
| 2025-07-18 | 72.73 | 69.09 | +0.60 | IFF ahead |
| 2025-07-17 | 71.80 | 69.19 | +0.44 | near the usual relationship |
| 2025-07-16 | 71.02 | 68.23 | +0.48 | near the usual relationship |
| 2025-07-15 | 70.48 | 68.25 | +0.40 | near the usual relationship |
| 2025-07-14 | 71.42 | 68.90 | +0.44 | near the usual relationship |
| 2025-07-11 | 72.68 | 70.55 | +0.38 | near the usual relationship |
| 2025-07-10 | 73.32 | 71.40 | +0.35 | near the usual relationship |
| 2025-07-09 | 73.25 | 70.87 | +0.43 | near the usual relationship |
| 2025-07-08 | 72.90 | 69.63 | +0.58 | IFF ahead |
| 2025-07-07 | 71.77 | 66.38 | +0.94 | IFF ahead |
| 2025-07-03 | 73.04 | 67.78 | +0.91 | IFF ahead |
| 2025-07-02 | 73.33 | 68.38 | +0.87 | IFF ahead |
| 2025-07-01 | 71.86 | 66.89 | +0.89 | IFF ahead |
| 2025-06-30 | 70.38 | 63.24 | +1.29 | IFF ahead |
| 2025-06-27 | 71.15 | 64.13 | +1.27 | IFF ahead |
| 2025-06-26 | 70.74 | 63.83 | +1.26 | IFF ahead |
| 2025-06-25 | 71.03 | 62.83 | +1.50 | IFF ahead |
| 2025-06-24 | 71.50 | 63.76 | +1.42 | IFF ahead |
| 2025-06-23 | 70.58 | 62.67 | +1.48 | IFF ahead |
| 2025-06-20 | 70.52 | 63.77 | +1.29 | IFF ahead |
| 2025-06-18 | 71.67 | 64.09 | +1.42 | IFF ahead |
| 2025-06-17 | 71.80 | 65.13 | +1.28 | IFF ahead |
| 2025-06-16 | 73.44 | 66.91 | +1.24 | IFF ahead |
| 2025-06-13 | 72.81 | 65.69 | +1.36 | IFF ahead |
| 2025-06-12 | 75.00 | 65.72 | +1.70 | IFF ahead |
| 2025-06-11 | 74.96 | 66.81 | +1.52 | IFF ahead |
| 2025-06-10 | 75.91 | 66.21 | +1.78 | IFF ahead |
| 2025-06-09 | 74.83 | 63.92 | +2.04 | IFF ahead |
| 2025-06-06 | 73.59 | 61.80 | +2.27 | IFF ahead |
| 2025-06-05 | 73.17 | 60.77 | +2.43 | IFF ahead |
| 2025-06-04 | 74.13 | 61.22 | +2.53 | IFF ahead |
| 2025-06-03 | 73.36 | 60.88 | +2.51 | IFF ahead |
| 2025-06-02 | 72.45 | 59.50 | +2.67 | IFF ahead |
| 2025-05-30 | 73.26 | 61.74 | +2.40 | IFF ahead |
| 2025-05-29 | 72.80 | 62.97 | +2.11 | IFF ahead |
| 2025-05-28 | 71.90 | 62.38 | +2.10 | IFF ahead |
| 2025-05-27 | 73.91 | 63.36 | +2.27 | IFF ahead |
| 2025-05-23 | 71.77 | 61.35 | +2.33 | IFF ahead |
| 2025-05-22 | 72.46 | 61.57 | +2.44 | IFF ahead |
| 2025-05-21 | 73.75 | 61.81 | +2.65 | IFF ahead |
| 2025-05-20 | 74.53 | 63.96 | +2.39 | IFF ahead |
| 2025-05-19 | 74.01 | 64.68 | +2.19 | IFF ahead |
| 2025-05-16 | 74.37 | 65.33 | +2.15 | IFF ahead |
| 2025-05-15 | 72.85 | 63.85 | +2.20 | IFF ahead |
| 2025-05-14 | 71.42 | 64.67 | +1.80 | IFF ahead |
| 2025-05-13 | 73.21 | 65.95 | +1.88 | IFF ahead |
| 2025-05-12 | 73.06 | 66.32 | +1.80 | IFF ahead |
| 2025-05-09 | 70.27 | 62.23 | +2.13 | IFF ahead |
| 2025-05-08 | 70.89 | 62.54 | +2.19 | IFF ahead |
| 2025-05-07 | 70.42 | 60.78 | +2.48 | IFF ahead |
| 2025-05-06 | 75.79 | 61.09 | +3.39 | IFF ahead |
| 2025-05-05 | 75.74 | 61.44 | +3.35 | IFF ahead |
| 2025-05-02 | 75.66 | 63.81 | +2.87 | IFF ahead |
| 2025-05-01 | 74.50 | 63.73 | +2.70 | IFF ahead |
| 2025-04-30 | 75.08 | 63.62 | +2.83 | IFF ahead |
| 2025-04-29 | 74.21 | 64.30 | +2.56 | IFF ahead |
| 2025-04-28 | 73.00 | 64.18 | +2.39 | IFF ahead |
| 2025-04-25 | 72.96 | 64.97 | +2.23 | IFF ahead |
| 2025-04-24 | 73.34 | 64.76 | +2.34 | IFF ahead |
| 2025-04-23 | 72.59 | 63.15 | +2.53 | IFF ahead |
| 2025-04-22 | 71.43 | 63.55 | +2.27 | IFF ahead |
| 2025-04-21 | 69.58 | 61.54 | +2.35 | IFF ahead |
| 2025-04-17 | 69.38 | 62.05 | +2.22 | IFF ahead |
| 2025-04-16 | 68.00 | 61.14 | +2.16 | IFF ahead |
| 2025-04-15 | 69.37 | 61.97 | +2.24 | IFF ahead |
| 2025-04-14 | 70.32 | 62.79 | +2.25 | IFF ahead |
| 2025-04-11 | 70.02 | 62.18 | +2.33 | IFF ahead |
| 2025-04-10 | 68.31 | 59.39 | +2.59 | IFF ahead |
| 2025-04-09 | 69.83 | 65.40 | +1.73 | IFF ahead |
| 2025-04-08 | 63.97 | 58.18 | +2.06 | IFF ahead |
| 2025-04-07 | 67.67 | 61.86 | +2.00 | IFF ahead |
| 2025-04-04 | 69.97 | 63.37 | +2.11 | IFF ahead |
| 2025-04-03 | 73.16 | 68.98 | +1.66 | IFF ahead |
| 2025-04-02 | 75.23 | 77.22 | +0.73 | IFF ahead |
| 2025-04-01 | 74.10 | 76.55 | +0.66 | IFF ahead |
| 2025-03-31 | 74.27 | 76.95 | +0.64 | IFF ahead |
| 2025-03-28 | 73.19 | 76.31 | +0.57 | IFF ahead |
| 2025-03-27 | 74.81 | 77.55 | +0.64 | IFF ahead |
| 2025-03-26 | 74.32 | 77.67 | +0.56 | IFF ahead |
| 2025-03-25 | 73.61 | 76.35 | +0.64 | IFF ahead |
| 2025-03-24 | 74.19 | 78.65 | +0.43 | near the usual relationship |
| 2025-03-21 | 74.49 | 78.21 | +0.53 | IFF ahead |
| 2025-03-20 | 76.31 | 79.45 | +0.62 | IFF ahead |
| 2025-03-19 | 77.08 | 80.51 | +0.60 | IFF ahead |
| 2025-03-18 | 77.33 | 82.07 | +0.44 | near the usual relationship |
| 2025-03-17 | 78.51 | 82.14 | +0.59 | IFF ahead |
| 2025-03-14 | 76.22 | 81.05 | +0.44 | near the usual relationship |
| 2025-03-13 | 75.76 | 79.36 | +0.59 | IFF ahead |
| 2025-03-12 | 76.12 | 78.90 | +0.69 | IFF ahead |
| 2025-03-11 | 76.44 | 80.84 | +0.51 | IFF ahead |
| 2025-03-10 | 76.87 | 83.66 | +0.25 | near the usual relationship |
| 2025-03-07 | 78.97 | 84.71 | +0.39 | near the usual relationship |
| 2025-03-06 | 78.53 | 82.97 | +0.53 | IFF ahead |
| 2025-03-05 | 77.75 | 83.30 | +0.42 | near the usual relationship |
| 2025-03-04 | 76.35 | 80.30 | +0.58 | IFF ahead |
| 2025-03-03 | 77.44 | 80.24 | +0.72 | IFF ahead |
| 2025-02-28 | 78.29 | 83.98 | +0.43 | near the usual relationship |
| 2025-02-27 | 77.55 | 83.06 | +0.45 | near the usual relationship |
| 2025-02-26 | 77.10 | 83.29 | +0.38 | near the usual relationship |
| 2025-02-25 | 76.82 | 84.85 | +0.20 | near the usual relationship |
| 2025-02-24 | 76.18 | 84.50 | +0.18 | near the usual relationship |
| 2025-02-21 | 76.45 | 84.12 | +0.25 | near the usual relationship |
| 2025-02-20 | 76.69 | 84.83 | +0.21 | near the usual relationship |
| 2025-02-19 | 78.46 | 84.71 | +0.41 | near the usual relationship |
| 2025-02-18 | 82.73 | 85.50 | +0.77 | IFF ahead |
| 2025-02-14 | 81.89 | 83.83 | +0.86 | IFF ahead |
| 2025-02-13 | 82.30 | 83.33 | +0.95 | IFF ahead |
| 2025-02-12 | 81.03 | 82.95 | +0.87 | IFF ahead |
| 2025-02-11 | 81.54 | 83.53 | +0.87 | IFF ahead |
| 2025-02-10 | 80.66 | 82.89 | +0.85 | IFF ahead |
| 2025-02-07 | 80.69 | 83.74 | +0.78 | IFF ahead |
| 2025-02-06 | 81.98 | 84.98 | +0.80 | IFF ahead |
| 2025-02-05 | 82.47 | 84.15 | +0.93 | IFF ahead |
| 2025-02-04 | 81.93 | 85.52 | +0.76 | IFF ahead |
| 2025-02-03 | 82.68 | 83.40 | +1.04 | IFF ahead |
| 2025-01-31 | 83.34 | 82.74 | +1.17 | IFF ahead |
| 2025-01-30 | 83.94 | 83.20 | +1.20 | IFF ahead |
| 2025-01-29 | 82.30 | 85.10 | +0.87 | IFF ahead |
| 2025-01-28 | 82.81 | 85.59 | +0.88 | IFF ahead |
| 2025-01-27 | 83.86 | 85.99 | +0.95 | IFF ahead |
| 2025-01-24 | 82.15 | 84.56 | +0.92 | IFF ahead |
| 2025-01-23 | 82.74 | 84.56 | +0.99 | IFF ahead |
| 2025-01-22 | 81.81 | 84.25 | +0.94 | IFF ahead |
| 2025-01-21 | 81.87 | 84.96 | +0.88 | IFF ahead |
| 2025-01-17 | 81.23 | 84.49 | +0.87 | IFF ahead |
| 2025-01-16 | 80.80 | 83.76 | +0.91 | IFF ahead |
| 2025-01-15 | 80.55 | 83.16 | +0.94 | IFF ahead |
| 2025-01-14 | 80.07 | 82.32 | +0.99 | IFF ahead |
| 2025-01-13 | 79.71 | 82.14 | +0.97 | IFF ahead |
| 2025-01-10 | 77.86 | 79.22 | +1.08 | IFF ahead |
| 2025-01-08 | 78.54 | 79.82 | +1.10 | IFF ahead |
| 2025-01-07 | 79.00 | 80.77 | +1.06 | IFF ahead |
| 2025-01-06 | 78.57 | 80.73 | +1.03 | IFF ahead |
| 2025-01-03 | 78.97 | 79.54 | +1.20 | IFF ahead |
| 2025-01-02 | 79.51 | 79.55 | +1.26 | IFF ahead |
| 2024-12-31 | 80.91 | 81.18 | +1.25 | IFF ahead |
| 2024-12-30 | 80.34 | 79.99 | +1.32 | IFF ahead |
| 2024-12-27 | 80.95 | 81.04 | +1.29 | IFF ahead |
| 2024-12-26 | 81.27 | 81.27 | +1.31 | IFF ahead |
| 2024-12-24 | 81.44 | 81.01 | +1.36 | IFF ahead |
| 2024-12-23 | 81.14 | 80.89 | +1.35 | IFF ahead |
| 2024-12-20 | 82.05 | 80.34 | +1.51 | IFF ahead |
| 2024-12-19 | 82.24 | 79.76 | +1.60 | IFF ahead |
| 2024-12-18 | 81.68 | 81.76 | +1.36 | IFF ahead |
| 2024-12-17 | 83.03 | 82.46 | +1.43 | IFF ahead |
| 2024-12-16 | 83.40 | 81.63 | +1.56 | IFF ahead |
| 2024-12-13 | 83.64 | 82.71 | +1.49 | IFF ahead |
| 2024-12-12 | 84.31 | 83.27 | +1.52 | IFF ahead |
| 2024-12-11 | 84.06 | 83.56 | +1.48 | IFF ahead |
| 2024-12-10 | 84.74 | 84.86 | +1.43 | IFF ahead |
| 2024-12-09 | 85.29 | 84.50 | +1.53 | IFF ahead |
| 2024-12-06 | 85.09 | 83.50 | +1.62 | IFF ahead |
| 2024-12-05 | 85.17 | 84.61 | +1.54 | IFF ahead |
| 2024-12-04 | 85.45 | 85.20 | +1.52 | IFF ahead |
| 2024-12-03 | 86.28 | 88.29 | +1.32 | IFF ahead |
| 2024-12-02 | 87.34 | 89.68 | +1.31 | IFF ahead |
| 2024-11-29 | 87.43 | 91.09 | +1.20 | IFF ahead |
| 2024-11-27 | 86.91 | 90.76 | +1.19 | IFF ahead |
| 2024-11-26 | 87.01 | 89.78 | +1.29 | IFF ahead |
| 2024-11-25 | 86.98 | 91.88 | +1.11 | IFF ahead |
| 2024-11-22 | 86.90 | 91.67 | +1.13 | IFF ahead |
| 2024-11-21 | 85.91 | 90.50 | +1.15 | IFF ahead |
| 2024-11-20 | 85.01 | 90.15 | +1.11 | IFF ahead |
| 2024-11-19 | 85.10 | 89.85 | +1.15 | IFF ahead |
| 2024-11-18 | 82.88 | 90.94 | +0.85 | IFF ahead |
| 2024-11-15 | 82.43 | 90.34 | +0.87 | IFF ahead |
| 2024-11-14 | 85.52 | 90.24 | +1.17 | IFF ahead |
| 2024-11-13 | 85.98 | 91.20 | +1.14 | IFF ahead |
| 2024-11-12 | 85.58 | 91.38 | +1.10 | IFF ahead |
| 2024-11-11 | 87.28 | 92.87 | +1.13 | IFF ahead |
| 2024-11-08 | 88.31 | 93.23 | +1.20 | IFF ahead |
| 2024-11-07 | 87.04 | 95.45 | +0.91 | IFF ahead |
| 2024-11-06 | 83.80 | 94.47 | +0.70 | IFF ahead |
| 2024-11-05 | 94.83 | 93.31 | +1.78 | IFF ahead |
| 2024-11-04 | 94.71 | 92.02 | +1.90 | IFF ahead |
| 2024-11-01 | 94.67 | 94.61 | +1.69 | IFF ahead |
| 2024-10-31 | 95.15 | 94.93 | +1.72 | IFF ahead |
| 2024-10-30 | 96.78 | 95.26 | +1.84 | IFF ahead |
| 2024-10-29 | 96.97 | 95.29 | +1.87 | IFF ahead |
| 2024-10-28 | 97.80 | 95.88 | +1.91 | IFF ahead |
| 2024-10-25 | 97.08 | 95.64 | +1.88 | IFF ahead |
| 2024-10-24 | 98.04 | 96.72 | +1.89 | IFF ahead |
| 2024-10-23 | 99.47 | 97.14 | +1.99 | IFF ahead |
| 2024-10-22 | 99.40 | 97.84 | +1.94 | IFF ahead |
| 2024-10-21 | 99.59 | 98.09 | +1.95 | IFF ahead |
| 2024-10-18 | 100.00 | 100.00 | +1.84 | IFF ahead |
One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Apr 10, 2025 (IFF -2.2%, LYB -9.2%); Jul 24, 2025 (IFF -2.0%, LYB -9.7%); Mar 5, 2026 (IFF -3.6%, LYB +6.4%); Apr 8, 2026 (IFF +5.4%, LYB -7.5%); Apr 17, 2026 (IFF +5.3%, LYB -12.0%); May 6, 2026 (IFF +17.2%, LYB -5.5%). Upcoming earnings: LYB Oct 30, 2026 (pre-market); IFF Nov 3, 2026 (after-hours).
Paired trades
The shared paper book and the replay, kept apart
Forward paper record
No paper position on this pair yet.
Historical simulation (a diagnostic, same rules)
No simulated trade through Oct 20, 2026: the pair rarely passed every test while 2 standard deviations apart.
Per $10,000 a leg. A replay on today's companies cannot prove an edge.
The companies
IFF and LYB at a glance
IFF International Flavors & Fragrances Inc.
- Listing
- NYSE · SEC CIK 51253
- Industry
- Major Chemicals · SIC 2860 Industrial Organic Chemicals
- Market value
- $23.2B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
LYB LyondellBasell Industries NV Ordinary Shares Class A (Netherlands)
- Listing
- NYSE · SEC CIK 1489393
- Industry
- Major Chemicals · SIC 2860 Industrial Organic Chemicals
- Market value
- $20.6B
- Price history
- 2,521 daily closes, Oct 12, 2016 to Oct 22, 2026
Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.
Related
All pairs →Other rivals of IFF and LYB
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Explore the private betaPaper only: hypothetical paired positions with modelled costs. No broker, no orders, no real money. A historical simulation is a diagnostic, not proof of an edge. Not investment advice.
