AMPH · Expected Move
Amphastar Pharmaceuticals, Inc.
The expected move for AMPH is derived from at-the-money straddle pricing — the market's implied one-standard-deviation move through the next 30 days. Comparing it to realized moves reveals when options are pricing in too much (premium-selling regime) vs too little (premium-buying regime).
AMPH straddle price & implied vol
60 sessionsBars: at-the-money straddle price (30-day and 7-day) — the market's priced move. Line: 30-day at-the-money implied volatility (right axis).
Current AMPH Expected Move
30-Day Straddle
$4.62
7-Day Straddle
$4.62
30-Day ATM IV
63.1%
IV Rank
32%
Implied one-standard-deviation move through the next 30 days. Compare to AMPH's realized
move over the same window to gauge whether options are pricing in too much (premium-selling regime)
or too little (premium-buying regime). The
Expected Move Tracker ranks every symbol by
this measure.
AMPH Straddle Price — Last 60 Days
| Date | 30D Straddle | 7D Straddle | ATM IV | IV Rank |
|---|---|---|---|---|
| 20261022 | $4.62 | $4.62 | 63.1% | 32% |
| 20261021 | $4.57 | $4.57 | 69.1% | 43% |
| 20261020 | $4.43 | $4.43 | 71.4% | 47% |
| 20261019 | $4.90 | $4.90 | 81.4% | 64% |
| 20261016 | $4.80 | $2.48 | 74.2% | 51% |
| 20261015 | $4.82 | $3.17 | 58.3% | 24% |
| 20261014 | $4.58 | $2.80 | 72.4% | 48% |
| 20261013 | $4.70 | $1.85 | 74.5% | 52% |
| 20261012 | $4.70 | $3.50 | 52.6% | 14% |
| 20261009 | $4.57 | $3.50 | 62.7% | 31% |
| 20261008 | $4.82 | $2.83 | 67.3% | 39% |
| 20261007 | $4.80 | $2.60 | 65.6% | 36% |
| 20261006 | $4.80 | $3.17 | 64.8% | 35% |
| 20261005 | $4.78 | $2.83 | 65.2% | 36% |
| 20261002 | $2.88 | $2.88 | 61.3% | 29% |
| 20261001 | $2.35 | $2.35 | 59.5% | 26% |
| 20260930 | $2.75 | $2.75 | 60.1% | 27% |
| 20260929 | $3.60 | $3.60 | 57.0% | 21% |
| 20260928 | $3.65 | $3.65 | 58.8% | 25% |
| 20260925 | $3.00 | $3.00 | 57.9% | 23% |
| 20260924 | $3.05 | $3.05 | 50.8% | 11% |
| 20260923 | $2.55 | $2.55 | 54.0% | 16% |
| 20260922 | $2.92 | $2.92 | 58.8% | 25% |
| 20260921 | $3.15 | $3.15 | 65.1% | 36% |
| 20260918 | $3.73 | $3.20 | 55.2% | 18% |
| 20260917 | $3.20 | $1.95 | 67.4% | 40% |
| 20260916 | $3.75 | $3.15 | 61.1% | 29% |
| 20260915 | $4.15 | $3.10 | 47.7% | 5% |
| 20260914 | $2.60 | $3.58 | 46.4% | 3% |
| 20260911 | $2.90 | $3.62 | 47.7% | 5% |
| 20260910 | $3.88 | $3.58 | 62.5% | 31% |
| 20260909 | $3.90 | $3.50 | 48.0% | 6% |
| 20260908 | $4.03 | $3.60 | 76.9% | 56% |
| 20260904 | $3.42 | $3.65 | 44.6% | 0% |
| 20260903 | $3.02 | $3.62 | 46.6% | 2% |
| 20260902 | $3.50 | $3.50 | 59.0% | 24% |
| 20260901 | $3.85 | $3.85 | 45.7% | 0% |
| 20260831 | $2.75 | $2.75 | 69.0% | 38% |
| 20260828 | $3.75 | $3.75 | 82.1% | 62% |
| 20260827 | $3.78 | $3.78 | 82.2% | 62% |
| 20260826 | $4.12 | $4.12 | 82.8% | 63% |
| 20260825 | $2.33 | $2.33 | 52.3% | 6% |
| 20260824 | $2.48 | $2.48 | 61.7% | 24% |
| 20260821 | $2.52 | $3.15 | 58.6% | 18% |
| 20260820 | $2.65 | $3.70 | 60.7% | 22% |
| 20260819 | $3.15 | $3.08 | 49.1% | 0% |
| 20260818 | $2.62 | $3.70 | 65.9% | 30% |
| 20260817 | $4.38 | $2.38 | 92.1% | 81% |
| 20260814 | $4.40 | $2.83 | 75.9% | 50% |
| 20260813 | $4.08 | $1.92 | 93.5% | 83% |
| 20260812 | $4.15 | $1.93 | 82.6% | 63% |
| 20260811 | $3.48 | $2.60 | 71.2% | 41% |
| 20260810 | $4.42 | $2.65 | 80.9% | 59% |
| 20260807 | — | — | 64.2% | 27% |
| 20260806 | $4.45 | $3.60 | 92.8% | 82% |
| 20260805 | $3.57 | $3.57 | 84.1% | 65% |
| 20260804 | $3.53 | $3.53 | 92.1% | 81% |
| 20260803 | $3.80 | $3.80 | 102.2% | 100% |
| 20260731 | $3.35 | $3.35 | 69.3% | 41% |
| 20260730 | $3.70 | $3.70 | 66.3% | 35% |
More on AMPH
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.