CSTL (Castle Biosciences, Inc. Common Stock)
Expected Move & Straddle Price History
The expected move for CSTL 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).
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.
Current CSTL Expected Move
30-Day Straddle
$4.42
7-Day Straddle
$2.55
Avg IV
1.2%
IV Rank
34%
Implied one-standard-deviation move through the next 30 days. Compare to CSTL'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.
CSTL Straddle Price — Last 60 Days
| Date | 30D Straddle | 7D Straddle | Avg IV | IV Rank |
|---|---|---|---|---|
| 20260813 | $4.42 | $2.55 | 1.2% | 34% |
| 20260812 | $4.85 | $3.02 | 1.0% | 25% |
| 20260811 | $5.22 | $3.95 | 1.0% | 23% |
| 20260810 | $5.12 | $3.42 | 1.1% | 27% |
| 20260806 | $4.70 | $2.62 | 1.1% | 28% |
| 20260805 | $3.00 | $3.00 | 1.4% | 57% |
| 20260804 | $3.00 | $3.00 | 1.2% | 35% |
| 20260803 | $3.78 | $3.78 | 1.2% | 40% |
| 20260731 | $4.55 | $4.55 | 1.2% | 39% |
| 20260730 | $5.28 | $5.28 | 1.1% | 28% |
| 20260729 | $4.50 | $4.50 | 1.2% | 35% |
| 20260728 | $4.25 | $4.25 | 1.1% | 26% |
| 20260727 | $3.88 | $3.88 | 1.0% | 24% |
| 20260724 | $4.67 | $4.67 | 1.1% | 27% |
| 20260723 | $4.32 | $4.32 | 0.9% | 14% |
| 20260722 | $4.20 | $4.20 | 0.8% | 5% |
| 20260721 | $4.15 | $4.15 | 1.0% | 17% |
| 20260720 | $4.28 | $4.28 | 0.9% | 14% |
| 20260716 | $5.12 | $1.27 | 0.8% | 3% |
| 20260715 | $5.40 | $1.55 | 0.8% | 3% |
| 20260714 | $4.47 | $1.18 | 0.7% | 0% |
| 20260713 | $4.47 | $2.00 | 0.9% | 7% |
| 20260710 | $4.43 | $2.23 | 0.9% | 7% |
| 20260709 | $5.53 | $1.88 | 0.8% | 0% |
| 20260708 | $5.08 | $2.83 | 0.9% | 5% |
| 20260707 | $5.15 | $2.88 | 0.8% | 3% |
| 20260706 | $5.00 | $2.28 | 0.8% | 0% |
| 20260702 | $2.38 | $2.38 | 2.0% | 100% |
| 20260701 | $2.67 | $2.67 | 1.6% | 79% |
| 20260630 | $3.25 | $3.25 | 1.4% | 59% |
| 20260629 | $2.92 | $2.92 | 1.8% | 100% |
| 20260626 | $3.02 | $3.02 | 1.4% | 60% |
| 20260625 | $3.28 | $3.28 | 1.4% | 55% |
| 20260624 | $3.05 | $3.05 | 1.3% | 49% |
| 20260623 | $3.72 | $3.72 | 1.6% | 77% |
| 20260622 | $3.05 | $3.05 | 1.4% | 54% |
| 20260618 | $3.70 | $2.02 | 1.3% | 47% |
| 20260617 | $3.47 | $2.42 | 1.4% | 55% |
| 20260616 | $3.85 | $2.33 | 1.4% | 56% |
| 20260615 | $3.85 | $1.43 | 1.2% | 42% |
| 20260613 | $3.55 | $2.80 | 1.2% | 41% |
| 20260612 | $3.55 | $2.80 | 1.2% | 41% |
| 20260611 | $4.15 | $3.12 | 1.2% | 39% |
| 20260610 | $4.18 | $2.95 | 1.2% | 44% |
| 20260609 | $3.67 | $3.15 | 1.2% | 42% |
| 20260608 | $3.90 | $2.88 | 1.1% | 25% |
| 20260605 | $4.35 | $2.83 | 1.2% | 39% |
| 20260604 | $3.88 | $2.30 | 1.1% | 33% |
| 20260603 | $4.30 | $2.83 | 1.1% | 37% |
| 20260602 | $2.45 | $2.45 | 1.8% | 100% |
| 20260601 | $3.58 | $3.58 | 1.4% | 66% |
| 20260529 | $3.20 | $3.20 | 1.4% | 61% |
| 20260528 | $3.00 | $3.00 | 1.0% | 28% |
| 20260527 | $3.45 | $3.45 | 1.1% | 36% |
| 20260526 | $3.38 | $3.38 | 1.3% | 53% |
| 20260522 | $3.12 | $3.12 | 1.2% | 53% |
| 20260521 | $3.50 | $3.50 | 0.9% | 25% |
| 20260520 | $3.08 | $3.08 | 0.9% | 30% |
| 20260519 | $3.55 | $3.55 | 1.1% | 41% |
| 20260518 | $3.53 | $3.53 | 1.3% | 57% |