Pre-market 2026-10-13: the chain vs the open
How far each US stock and ETF perp on Hyperliquid's EntropyIO (io) deployer moved on-chain between the 2026-10-12 close and 04:00 and 09:00 ET on 2026-10-13, and whether the real opening gap went the same way.
| market | class | 04:00 call | 09:00 call | high / low | path · close → 09:30 | real gap | right before · ±0.10% | volume |
|---|---|---|---|---|---|---|---|---|
| SNDKus equity | us equity | -3.69%✓ | -4.56%✓ | +0.03% / -5.45% | -4.50% | 09:00 86% of 2804:00 85% of 27 | $38.0M | |
| EWYus etf | us etf | -3.61%✓ | -4.09%✓ | +0.05% / -5.60% | -3.94% | 09:00 100% of 1504:00 n=14 (<15) | $707k | |
| NBISus equity | us equity | -2.57%✓ | -3.79%✓ | +0.35% / -4.57% | -4.42% | 09:00 81% of 2704:00 76% of 25 | $2.0M | |
| GPROus equity | us equity | -1.69%✓ | -1.29% · 43m old | +1.42% / -2.21% | -0.86% | 09:00 75% of 2004:00 61% of 23 | $63k | |
| IONQus equity | us equity | +0.00%· | -0.69%✓ · 16m old | +1.65% / -2.27% | -2.34% | 09:00 89% of 1904:00 81% of 16 | $119k |
04:00 call = last 1-minute candle close before 04:00 ET vs the candle close in the last minute of the previous session (15:59 ET, 12:59 on half days) 09:00 call = the same at 09:00 ET "12m old" = the candle used closed that long before the target minute (shown above 5 min; older than 30 min is excluded from every rate) ✓ same direction as the real gap, ✗ opposite, and · inside the 0.10% dead band (not scored) high / low = extremes of 1-minute highs and lows while the market was closed, same base path = candle close every 15 minutes from the previous close to 09:30 ET, scale per row, centre line = previous close, ticks = 04:00 and 09:00, dashed = no candle in between real gap = oracle price at 09:30 ET vs at the previous close, on io's own oracle; on the 77 symbol-nights xyz also lists, it was within 0.05 pp of xyz's (median) and went the same way 73 of 74 times right before = this symbol's past nights with the same 0.10% band, shown from n=15 volume = sum of 1-minute base volume × close in the window, approximate definitions in methodology
call vs open · 2026-10-13
One night is a small sample; the running record is on the scorecard, which describes past nights and is not a forecast. Data: 2026-10-13.json · definitions and caveats in methodology.