Rio Tinto Group (RIO)
RIO Daily Gamma Exposure
Current Gamma Exposure (GEX) is 24.35K, which is 23% above the 3M average of 19.84K. Over this period, GEX peaked at 130.93K on Aug 12, 2025 and bottomed at -17.53K on Jun 20, 2025, showing a shift between positive and negative gamma regimes. The exposure has been increasing recently, suggesting growing dealer hedging that could dampen volatility. Today's put-call gamma ratio of 0.85 is elevated versus the recent average of 0.65, suggesting increased put hedging. High GEX volatility (±32.38K) suggests frequent repositioning and potential regime changes.
GEX History
| Date | Call GEX | Put GEX | Net GEX | P/C GEX |
|---|---|---|---|---|
| Aug 15, 2025 | 158,696.26 | -134,348.07 | 24,348.19 | 0.85 |
| Aug 14, 2025 | 222,322.22 | -106,752.46 | 115,569.76 | 0.48 |
| Aug 13, 2025 | 211,038.24 | -103,853.21 | 107,185.03 | 0.49 |
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