iShares Core 1-5 Year USD... (ISTB)
NASDAQ: ISTB
· Real-Time Price · USD
48.73
-0.02 (-0.04%)
At close: Oct 06, 2025, 2:59 PM
ISTB Gamma Exposure By Expiry
The total Gamma Exposure (GEX) for ISTB across all expirations is 601.9 shares per 1% move, with 1,145.52 from calls and 543.62 from puts. The put-call GEX ratio of 0.47 shows call-heavy positioning, potentially creating volatility as market makers hedge by selling into strength and buying weakness.
ISTB GEX Table
| Expiry Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Oct 17, 25 | 681.07 | -188.52 | 492.55 | 0.28 |
| Nov 21, 25 | 464.45 | -355.1 | 109.35 | 0.76 |
| Jan 16, 26 | 0 | 0 | 0 | n/a |
| Feb 20, 26 | 0 | 0 | 0 | n/a |
| May 15, 26 | 0 | 0 | 0 | n/a |