IWM expected-move history iShares Russell 2000 ETF
Every trading day after the close we record what the options market was pricing — per expiration, before the outcome was known. When an expiration passes, the outcome is written next to the original estimate. Estimates are never revised after the fact. How to read these statistics · recording since Aug 31, 2026
Comparisons resolved200
Close inside range51%
|Actual| under expected50%
Avg expected move±2.4%
Avg |actual| move2.6%
Mean abs. error1.0pt
Implied vs realized, by expiration
For each expiration: the amber outline is the expected move recorded closest to expiry; the solid bar is what the stock actually did. Signed values are printed beneath the bars.
expected (recorded)actual
Currently recorded (awaiting outcome)
| Snapshot | Expires | DTE | Spot then | Expected move | Range | Method |
|---|---|---|---|---|---|---|
| Oct 19 | Oct 19 | 0 | 271.35 | ±0.1% | 271.12–271.57 | em-1.0 |
| Oct 16 | Oct 19 | 3 | 270.36 | ±1.1% | 267.44–273.27 | em-1.0 |
| Oct 14 | Oct 19 | 5 | 271.10 | ±1.5% | 266.96–275.24 | em-1.0 |
| Oct 13 | Oct 19 | 6 | 276.80 | ±1.6% | 272.24–281.37 | em-1.0 |
| Oct 09 | Oct 19 | 10 | 278.80 | ±1.9% | 273.50–284.10 | em-1.0 |
| Oct 08 | Oct 19 | 11 | 277.70 | ±2.3% | 271.39–284.00 | em-1.0 |
| Oct 07 | Oct 19 | 12 | 277.72 | ±2.4% | 271.10–284.34 | em-1.0 |
| Oct 06 | Oct 19 | 13 | 281.26 | ±2.5% | 274.26–288.26 | em-1.0 |
| Oct 05 | Oct 19 | 14 | 283.23 | ±2.6% | 275.92–290.53 | em-1.0 |
| Oct 19 | Oct 20 | 1 | 271.35 | ±0.8% | 269.20–273.50 | em-1.0 |
| Oct 16 | Oct 20 | 4 | 270.36 | ±1.4% | 266.60–274.12 | em-1.0 |
| Oct 14 | Oct 20 | 6 | 271.10 | ±1.7% | 266.42–275.78 | em-1.0 |
| Oct 13 | Oct 20 | 7 | 276.80 | ±1.8% | 271.85–281.75 | em-1.0 |
| Oct 09 | Oct 20 | 11 | 278.80 | ±2.0% | 273.12–284.48 | em-1.0 |
| Oct 08 | Oct 20 | 12 | 277.70 | ±2.4% | 271.03–284.37 | em-1.0 |
| Oct 07 | Oct 20 | 13 | 277.72 | ±2.5% | 270.71–284.73 | em-1.0 |
| Oct 06 | Oct 20 | 14 | 281.26 | ±2.6% | 273.94–288.58 | em-1.0 |
| Oct 19 | Oct 21 | 2 | 271.35 | ±1.1% | 268.28–274.42 | em-1.0 |
| Oct 16 | Oct 21 | 5 | 270.36 | ±1.6% | 265.92–274.80 | em-1.0 |
| Oct 14 | Oct 21 | 7 | 271.10 | ±1.9% | 265.92–276.29 | em-1.0 |
| Oct 13 | Oct 21 | 8 | 276.80 | ±1.9% | 271.45–282.15 | em-1.0 |
| Oct 09 | Oct 21 | 12 | 278.80 | ±2.2% | 272.77–284.83 | em-1.0 |
| Oct 08 | Oct 21 | 13 | 277.70 | ±2.5% | 270.67–284.73 | em-1.0 |
| Oct 07 | Oct 21 | 14 | 277.72 | ±2.7% | 270.35–285.10 | em-1.0 |
| Oct 19 | Oct 22 | 3 | 271.35 | ±1.4% | 267.53–275.17 | em-1.0 |
| Oct 16 | Oct 22 | 6 | 270.36 | ±1.9% | 265.29–275.43 | em-1.0 |
| Oct 14 | Oct 22 | 8 | 271.10 | ±2.1% | 265.42–276.78 | em-1.0 |
| Oct 13 | Oct 22 | 9 | 276.80 | ±2.1% | 271.07–282.53 | em-1.0 |
| Oct 09 | Oct 22 | 13 | 278.80 | ±2.3% | 272.40–285.20 | em-1.0 |
| Oct 08 | Oct 22 | 14 | 277.70 | ±2.7% | 270.33–285.06 | em-1.0 |
Resolved snapshots
| Snapshot | Expired | Expected | Actual | Inside range? | Spot → close |
|---|---|---|---|---|---|
| Oct 16, 2026 | Oct 16 | ±0.2% | +0.0% | inside | 270.36 → 270.44 |
| Oct 14, 2026 | Oct 16 | ±1.3% | -0.2% | inside | 271.10 → 270.44 |
| Oct 13, 2026 | Oct 16 | ±1.5% | -2.3% | outside | 276.80 → 270.44 |
| Oct 09, 2026 | Oct 16 | ±1.7% | -3.0% | outside | 278.80 → 270.44 |
| Oct 08, 2026 | Oct 16 | ±2.1% | -2.6% | outside | 277.70 → 270.44 |
| Oct 07, 2026 | Oct 16 | ±2.2% | -2.6% | outside | 277.72 → 270.44 |
| Oct 06, 2026 | Oct 16 | ±2.3% | -3.8% | outside | 281.26 → 270.44 |
| Oct 05, 2026 | Oct 16 | ±2.4% | -4.5% | outside | 283.23 → 270.44 |
| Oct 02, 2026 | Oct 16 | ±2.7% | -3.9% | outside | 281.28 → 270.44 |
| Oct 01, 2026 | Oct 16 | ±3.2% | -3.2% | outside | 279.37 → 270.44 |
| Sep 23, 2026 | Oct 16 | ±3.5% | -5.8% | outside | 287.21 → 270.44 |
| Sep 22, 2026 | Oct 16 | ±3.5% | -5.9% | outside | 287.39 → 270.44 |
| Sep 21, 2026 | Oct 16 | ±3.5% | -5.3% | outside | 285.72 → 270.44 |
| Sep 18, 2026 | Oct 16 | ±3.7% | -4.8% | outside | 284.10 → 270.44 |
| Sep 17, 2026 | Oct 16 | ±3.9% | -5.2% | outside | 285.38 → 270.44 |
| Sep 16, 2026 | Oct 16 | ±4.4% | -4.7% | outside | 283.89 → 270.44 |
| Sep 15, 2026 | Oct 16 | ±4.5% | -5.2% | outside | 285.25 → 270.44 |
| Sep 14, 2026 | Oct 16 | ±4.3% | -6.1% | outside | 288.09 → 270.44 |
| Sep 11, 2026 | Oct 16 | ±4.5% | -6.3% | outside | 288.73 → 270.44 |
| Sep 10, 2026 | Oct 16 | ±5.0% | -6.0% | outside | 287.60 → 270.44 |
| Sep 09, 2026 | Oct 16 | ±4.7% | -7.0% | outside | 290.71 → 270.44 |
| Sep 08, 2026 | Oct 16 | ±4.5% | -8.2% | outside | 294.52 → 270.44 |
| Sep 07, 2026 | Oct 16 | ±4.5% | -8.6% | outside | 296.01 → 270.44 |
| Sep 04, 2026 | Oct 16 | ±4.5% | -8.5% | outside | 295.59 → 270.44 |
| Sep 03, 2026 | Oct 16 | ±4.7% | -8.3% | outside | 295.04 → 270.44 |
| Sep 02, 2026 | Oct 16 | ±4.9% | -8.0% | outside | 293.82 → 270.44 |
| Sep 01, 2026 | Oct 16 | ±5.1% | -7.0% | outside | 290.67 → 270.44 |
| Aug 31, 2026 | Oct 16 | ±4.8% | -8.0% | outside | 293.93 → 270.44 |
| Oct 14, 2026 | Oct 15 | ±0.9% | +1.5% | outside | 271.10 → 275.08 |
| Oct 13, 2026 | Oct 15 | ±1.2% | -0.6% | inside | 276.80 → 275.08 |
| Oct 09, 2026 | Oct 15 | ±1.5% | -1.3% | inside | 278.80 → 275.08 |
| Oct 08, 2026 | Oct 15 | ±1.9% | -0.9% | inside | 277.70 → 275.08 |
| Oct 07, 2026 | Oct 15 | ±2.0% | -1.0% | inside | 277.72 → 275.08 |
| Oct 06, 2026 | Oct 15 | ±2.1% | -2.2% | outside | 281.26 → 275.08 |
| Oct 05, 2026 | Oct 15 | ±2.3% | -2.9% | outside | 283.23 → 275.08 |
| Oct 02, 2026 | Oct 15 | ±2.5% | -2.2% | inside | 281.28 → 275.08 |
| Oct 01, 2026 | Oct 15 | ±3.0% | -1.5% | inside | 279.37 → 275.08 |
| Oct 14, 2026 | Oct 14 | ±0.1% | +0.1% | outside | 271.10 → 271.37 |
| Oct 13, 2026 | Oct 14 | ±1.0% | -2.0% | outside | 276.80 → 271.37 |
| Oct 09, 2026 | Oct 14 | ±1.3% | -2.7% | outside | 278.80 → 271.37 |
| Oct 08, 2026 | Oct 14 | ±1.7% | -2.3% | outside | 277.70 → 271.37 |
| Oct 07, 2026 | Oct 14 | ±1.8% | -2.3% | outside | 277.72 → 271.37 |
| Oct 06, 2026 | Oct 14 | ±2.0% | -3.5% | outside | 281.26 → 271.37 |
| Oct 05, 2026 | Oct 14 | ±2.1% | -4.2% | outside | 283.23 → 271.37 |
| Oct 02, 2026 | Oct 14 | ±2.4% | -3.5% | outside | 281.28 → 271.37 |
| Oct 01, 2026 | Oct 14 | ±2.9% | -2.9% | inside | 279.37 → 271.37 |
| Oct 13, 2026 | Oct 13 | ±0.1% | -0.0% | inside | 276.80 → 276.70 |
| Oct 09, 2026 | Oct 13 | ±0.9% | -0.8% | inside | 278.80 → 276.70 |
| Oct 08, 2026 | Oct 13 | ±1.4% | -0.4% | inside | 277.70 → 276.70 |
| Oct 07, 2026 | Oct 13 | ±1.5% | -0.4% | inside | 277.72 → 276.70 |
| Oct 06, 2026 | Oct 13 | ±1.7% | -1.6% | inside | 281.26 → 276.70 |
| Oct 05, 2026 | Oct 13 | ±1.8% | -2.3% | outside | 283.23 → 276.70 |
| Oct 02, 2026 | Oct 13 | ±2.1% | -1.6% | inside | 281.28 → 276.70 |
| Oct 01, 2026 | Oct 13 | ±2.7% | -1.0% | inside | 279.37 → 276.70 |
| Oct 09, 2026 | Oct 12 | ±0.7% | -0.3% | inside | 278.80 → 277.90 |
| Oct 08, 2026 | Oct 12 | ±1.1% | +0.1% | inside | 277.70 → 277.90 |
| Oct 07, 2026 | Oct 12 | ±1.3% | +0.1% | inside | 277.72 → 277.90 |
| Oct 06, 2026 | Oct 12 | ±1.5% | -1.2% | inside | 281.26 → 277.90 |
| Oct 05, 2026 | Oct 12 | ±1.6% | -1.9% | outside | 283.23 → 277.90 |
| Oct 02, 2026 | Oct 12 | ±2.0% | -1.2% | inside | 281.28 → 277.90 |
Outcomes compare the recorded range with the closing price on expiration day. Method version shown per row where it differs; current: em-1.0.