Per-coin derivatives history · 1h cadence · 7d window · as of 2026-10-28 20:00:00 · 167 hourly rows
BTC:
range
/
range_bound
Coin page →
Funding (now)
ⓘ
0.00125%
%7d
ⓘ
100.0%
%30d
ⓘ
99.6%
Sign streak
ⓘ
+13
OI Δ4h
ⓘ
+0.66%
OI z-7d
ⓘ
—
Price Δ4h
ⓘ
-1.24%
Price × OI
ⓘ
↓↑
💰 Funding — computed vs raw settlements
168 settled · 167 hourly
Line = funding_current (computed hourly).
Dots = raw settled rates from funding_rates.
Right axis = percentile 7d + 30d.
QA : si %7d = 100% au bord droit → funding_current doit coïncider avec le MAX des dots sur 7j.
📊 Open Interest — notional + dynamics
1348 snapshotsLeft = open_interest_usd raw notional. Right = oi_change_zscore_7d + oi_momentum_4h.
📋 Hourly feature table
(167 rows, latest first)
| time (UTC) | price Δ4h | OI Δ4h | OI z-7d | funding | %7d | %30d | streak | P×OI |
|---|---|---|---|---|---|---|---|---|
| 2026-10-29 00:00 | -1.24% | +0.66% | — | 0.00125% | 100.0% | 99.6% | +13 | ↓↑ |
| 2026-10-28 23:00 | -1.02% | — | — | 0.00125% | 100.0% | 99.6% | +12 | — |
| 2026-10-28 22:00 | +0.67% | — | — | 0.00125% | 100.0% | 99.6% | +11 | — |
| 2026-10-28 21:00 | +4.13% | — | — | 0.00125% | 100.0% | 99.6% | +10 | — |
| 2026-10-28 20:00 | +3.92% | — | — | 0.00125% | 100.0% | 99.6% | +9 | — |
| 2026-10-28 19:00 | +3.12% | — | — | 0.00125% | 100.0% | 99.6% | +8 | — |
| 2026-10-28 18:00 | +2.76% | — | — | 0.00125% | 100.0% | 99.6% | +7 | — |
| 2026-10-28 17:00 | -0.04% | — | — | 0.00125% | 100.0% | 99.6% | +6 | — |
| 2026-10-28 16:00 | -0.28% | — | — | 0.00125% | 100.0% | 99.6% | +5 | — |
| 2026-10-28 15:00 | -1.82% | — | — | 0.00125% | 100.0% | 99.6% | +4 | — |
| 2026-10-28 14:00 | -3.12% | — | — | 0.00125% | 100.0% | 99.6% | +3 | — |
| 2026-10-28 13:00 | -3.35% | — | — | 0.00125% | 100.0% | 99.6% | +2 | — |
| 2026-10-28 12:00 | -2.44% | — | — | 0.00094% | 53.0% | 17.6% | +1 | — |
| 2026-10-28 11:00 | +0.36% | — | — | -0.00009% | 24.4% | 8.2% | -1 | — |
| 2026-10-28 10:00 | +0.91% | — | — | 0.00125% | 100.0% | 99.6% | +13 | — |
| 2026-10-28 09:00 | +1.05% | — | — | 0.00125% | 100.0% | 99.6% | +12 | — |
| 2026-10-28 08:00 | -0.12% | — | — | 0.00125% | 100.0% | 99.6% | +11 | — |
| 2026-10-28 07:00 | -0.66% | — | — | 0.00125% | 100.0% | 99.6% | +10 | — |
| 2026-10-28 06:00 | -1.00% | — | — | 0.00125% | 100.0% | 99.6% | +9 | — |
| 2026-10-28 05:00 | -1.34% | — | — | 0.00125% | 100.0% | 99.6% | +8 | — |
| 2026-10-28 04:00 | +0.27% | — | — | 0.00125% | 100.0% | 99.6% | +7 | — |
| 2026-10-28 03:00 | +0.88% | — | — | 0.00125% | 100.0% | 99.6% | +6 | — |
| 2026-10-28 02:00 | +1.67% | — | — | 0.00125% | 100.0% | 99.6% | +5 | — |
| 2026-10-28 01:00 | +1.97% | — | — | 0.00125% | 100.0% | 99.6% | +4 | — |
| 2026-10-28 00:00 | +1.44% | — | — | 0.00075% | 50.6% | 15.6% | +3 | — |
| 2026-10-27 23:00 | +0.34% | — | — | 0.00125% | 100.0% | 99.6% | +2 | — |
| 2026-10-27 22:00 | -0.17% | — | — | 0.00040% | 42.3% | 12.8% | +1 | — |
| 2026-10-27 21:00 | +0.51% | — | — | -0.00015% | 23.2% | 7.8% | -1 | — |
| 2026-10-27 20:00 | -0.16% | — | — | 0.00125% | 100.0% | 99.6% | +15 | — |
| 2026-10-27 19:00 | +0.66% | — | — | 0.00125% | 100.0% | 99.6% | +14 | — |
| 2026-10-27 18:00 | +1.24% | — | — | 0.00110% | 60.1% | 18.1% | +13 | — |
| 2026-10-27 17:00 | +1.49% | — | — | 0.00125% | 100.0% | 99.4% | +12 | — |
| 2026-10-27 16:00 | +0.41% | — | — | 0.00125% | 100.0% | 99.4% | +11 | — |
| 2026-10-27 15:00 | +0.92% | — | — | 0.00061% | 44.6% | 13.6% | +10 | — |
| 2026-10-27 14:00 | -0.33% | — | — | 0.00125% | 100.0% | 99.4% | +9 | — |
| 2026-10-27 13:00 | -0.68% | — | — | 0.00125% | 100.0% | 99.4% | +8 | — |
| 2026-10-27 12:00 | -0.14% | — | — | 0.00125% | 100.0% | 99.4% | +7 | — |
| 2026-10-27 11:00 | -0.98% | — | — | 0.00077% | 53.6% | 15.4% | +6 | — |
| 2026-10-27 10:00 | -0.03% | — | — | 0.00110% | 61.3% | 17.6% | +5 | — |
| 2026-10-27 09:00 | -0.94% | — | — | 0.00106% | 60.1% | 17.2% | +4 | — |
| 2026-10-27 08:00 | +0.23% | — | — | 0.00125% | 100.0% | 99.2% | +3 | — |
| 2026-10-27 07:00 | +0.12% | — | — | 0.00075% | 54.2% | 15.0% | +2 | — |
| 2026-10-27 06:00 | -0.73% | — | — | 0.00045% | 45.2% | 12.6% | +1 | — |
| 2026-10-27 05:00 | -0.51% | — | — | -0.00023% | 23.8% | 7.1% | -4 | — |
| 2026-10-27 04:00 | -1.61% | — | — | -0.00157% | 4.2% | 1.0% | -3 | — |
| 2026-10-27 03:00 | -1.65% | — | — | -0.00063% | 15.5% | 4.4% | -2 | — |
| 2026-10-27 02:00 | +0.02% | -0.32% | -0.12 | -0.00042% | 19.6% | 5.6% | -1 | ↑↓ |
| 2026-10-27 01:00 | +0.18% | -0.45% | 0.04 | 0.00016% | 36.3% | 9.7% | +8 | ↑↓ |
| 2026-10-27 00:00 | +1.02% | -0.64% | -0.12 | 0.00118% | 62.5% | 16.7% | +7 | ↑↓ |
| 2026-10-26 23:00 | +0.67% | -0.72% | -0.29 | 0.00013% | 36.3% | 9.4% | +6 | ↑↓ |
| 2026-10-26 22:00 | -0.53% | -0.73% | -0.41 | 0.00014% | 36.9% | 9.4% | +5 | ↓↓ |
| 2026-10-26 21:00 | -1.35% | -0.69% | -0.39 | 0.00094% | 58.9% | 15.4% | +4 | ↓↓ |
| 2026-10-26 20:00 | -1.14% | -0.77% | -0.31 | 0.00038% | 44.0% | 11.1% | +3 | ↓↓ |
| 2026-10-26 19:00 | -1.50% | -0.73% | -0.34 | 0.00011% | 36.3% | 8.9% | +2 | ↓↓ |
| 2026-10-26 18:00 | -2.23% | -1.24% | -0.34 | 0.00084% | 57.7% | 14.6% | +1 | ↓↓ |
| 2026-10-26 17:00 | +0.76% | -1.15% | -0.57 | -0.00038% | 24.4% | 6.0% | -1 | ↑↓ |
| 2026-10-26 16:00 | -0.23% | -0.74% | -0.25 | 0.00125% | 100.0% | 98.2% | +9 | ↓↓ |
| 2026-10-26 15:00 | +0.59% | -0.69% | -1.48 | 0.00125% | 100.0% | 98.1% | +8 | ↑↓ |
| 2026-10-26 14:00 | +1.74% | -0.04% | -0.17 | 0.00125% | 100.0% | 97.9% | +7 | ↑↓ |
| 2026-10-26 13:00 | -0.71% | -0.11% | 0.29 | 0.00125% | 100.0% | 97.8% | +6 | ↓↓ |
| 2026-10-26 12:00 | -0.17% | -0.14% | -0.15 | 0.00125% | 100.0% | 97.6% | +5 | ↓↓ |
| 2026-10-26 11:00 | +1.27% | -0.19% | -0.10 | 0.00106% | 61.9% | 15.0% | +4 | ↑↓ |
| 2026-10-26 10:00 | +0.91% | -0.26% | -0.33 | 0.00125% | 100.0% | 97.5% | +3 | ↑↓ |
| 2026-10-26 09:00 | -0.03% | -0.05% | 0.22 | 0.00125% | 100.0% | 97.5% | +2 | ↓↓ |
| 2026-10-26 08:00 | -0.42% | -0.23% | -0.26 | 0.00125% | 100.0% | 97.5% | +1 | ↓↓ |
| 2026-10-26 07:00 | -0.50% | -0.15% | -0.25 | -0.00099% | 9.5% | 2.2% | -3 | ↓↓ |
| 2026-10-26 06:00 | -0.93% | -0.02% | 0.12 | -0.00020% | 27.4% | 6.7% | -2 | ↓↓ |
| 2026-10-26 05:00 | +0.05% | -0.34% | -0.19 | -0.00088% | 13.1% | 3.2% | -1 | ↑↓ |
| 2026-10-26 04:00 | -0.60% | -0.36% | -0.11 | 0.00025% | 39.3% | 9.4% | +3 | ↓↓ |
| 2026-10-26 03:00 | -1.72% | +0.04% | 0.01 | 0.00125% | 100.0% | 97.5% | +2 | ↓↑ |
| 2026-10-26 02:00 | -1.47% | +0.03% | -0.58 | 0.00125% | 100.0% | 97.5% | +1 | ↓↑ |
| 2026-10-26 01:00 | -0.26% | +0.30% | -0.22 | -0.00097% | 9.5% | 2.4% | -19 | ↓↑ |
| 2026-10-26 00:00 | -0.18% | +0.24% | 0.71 | -0.00020% | 26.2% | 6.4% | -18 | ↓↑ |
| 2026-10-25 23:00 | -0.20% | -0.11% | -0.01 | -0.00059% | 18.5% | 4.4% | -17 | ↓↓ |
| 2026-10-25 22:00 | -0.38% | -0.05% | -0.02 | -0.00010% | 26.2% | 6.4% | -16 | ↓↓ |
| 2026-10-25 21:00 | -1.47% | -0.26% | -0.34 | -0.00023% | 25.6% | 6.1% | -15 | ↓↓ |
| 2026-10-25 20:00 | -0.39% | -0.26% | 0.04 | -0.00053% | 19.0% | 4.4% | -14 | ↓↓ |
| 2026-10-25 19:00 | +0.26% | -0.34% | 0.16 | -0.00089% | 11.9% | 2.8% | -13 | ↑↓ |
| 2026-10-25 18:00 | +0.94% | -0.65% | -0.30 | -0.00087% | 12.5% | 2.9% | -12 | ↑↓ |
| 2026-10-25 17:00 | +1.64% | -0.57% | -0.24 | -0.00048% | 18.5% | 4.3% | -11 | ↑↓ |
| 2026-10-25 16:00 | +1.71% | -0.47% | -0.09 | -0.00162% | 3.0% | 0.7% | -10 | ↑↓ |
| 2026-10-25 15:00 | +0.69% | -0.35% | -0.39 | -0.00051% | 17.3% | 4.0% | -9 | ↑↓ |
| 2026-10-25 14:00 | +0.83% | +0.13% | -0.17 | -0.00026% | 20.8% | 5.0% | -8 | ↑↑ |
| 2026-10-25 13:00 | -0.04% | +0.08% | -0.08 | -0.00099% | 8.3% | 1.9% | -7 | ↓↑ |
| 2026-10-25 12:00 | +0.03% | +0.18% | 0.10 | -0.00035% | 19.0% | 4.6% | -6 | ↑↑ |
| 2026-10-25 11:00 | -0.58% | +0.18% | 0.41 | -0.00155% | 3.6% | 0.8% | -5 | ↓↑ |
| 2026-10-25 10:00 | -0.69% | -0.21% | -0.27 | -0.00195% | 2.4% | 0.6% | -4 | ↓↓ |
| 2026-10-25 09:00 | -1.07% | -0.19% | 0.09 | -0.00077% | 11.9% | 2.8% | -3 | ↓↓ |
| 2026-10-25 08:00 | -2.05% | -0.34% | 0.11 | -0.00008% | 19.6% | 4.7% | -2 | ↓↓ |
| 2026-10-25 07:00 | -1.25% | -0.41% | -0.23 | -0.00119% | 4.8% | 1.1% | -1 | ↓↓ |
| 2026-10-25 06:00 | -1.41% | -0.31% | -0.22 | 0.00012% | 24.4% | 5.8% | +1 | ↓↓ |
| 2026-10-25 05:00 | -1.13% | -0.23% | -0.18 | -0.00060% | 13.7% | 3.2% | -1 | ↓↓ |
| 2026-10-25 04:00 | -0.80% | -0.12% | -0.01 | 0.00057% | 35.7% | 8.5% | +12 | ↓↓ |
| 2026-10-25 03:00 | -0.49% | -0.16% | -0.07 | 0.00121% | 50.6% | 11.9% | +11 | ↓↓ |
| 2026-10-25 02:00 | +0.02% | -0.32% | -0.10 | 0.00099% | 47.6% | 11.3% | +10 | ↑↓ |
| 2026-10-25 01:00 | +0.61% | -0.28% | 0.00 | 0.00035% | 28.6% | 6.8% | +9 | ↑↓ |
| 2026-10-25 00:00 | +0.48% | -0.22% | -0.08 | 0.00090% | 46.4% | 11.0% | +8 | ↑↓ |
| 2026-10-24 23:00 | +0.79% | -0.14% | -0.33 | 0.00040% | 31.0% | 7.4% | +7 | ↑↓ |
| 2026-10-24 22:00 | -0.40% | +0.15% | -0.04 | 0.00125% | 100.0% | 97.2% | +6 | ↓↑ |
| 2026-10-24 21:00 | +0.86% | +0.12% | 0.11 | 0.00062% | 35.1% | 8.3% | +5 | ↑↑ |
| 2026-10-24 20:00 | +0.61% | -0.02% | 0.08 | 0.00125% | 100.0% | 97.2% | +4 | ↑↓ |
| 2026-10-24 19:00 | +0.61% | -0.31% | 0.17 | 0.00125% | 100.0% | 97.2% | +3 | ↑↓ |
| 2026-10-24 18:00 | +0.90% | -0.68% | -0.07 | 0.00125% | 100.0% | 97.2% | +2 | ↑↓ |
| 2026-10-24 17:00 | -1.57% | -0.68% | -0.11 | 0.00125% | 100.0% | 97.2% | +1 | ↓↓ |
| 2026-10-24 16:00 | -1.16% | -0.60% | -0.39 | -0.00075% | 11.3% | 2.6% | -3 | ↓↓ |
| 2026-10-24 15:00 | -1.75% | — | -0.42 | -0.00005% | 17.9% | 4.3% | -2 | — |
| 2026-10-24 14:00 | -1.70% | — | -0.09 | -0.00108% | 5.4% | 1.3% | -1 | — |
| 2026-10-24 13:00 | -0.16% | — | 0.00 | 0.00002% | 19.6% | 4.7% | +3 | — |
| 2026-10-24 12:00 | -0.01% | — | -3.78 | 0.00063% | 33.3% | 7.9% | +2 | — |
| 2026-10-24 11:00 | +0.06% | — | — | 0.00048% | 31.0% | 7.4% | +1 | — |
| 2026-10-24 10:00 | -0.89% | — | — | -0.00047% | 12.5% | 2.9% | -1 | — |
| 2026-10-24 09:00 | -1.34% | — | — | 0.00040% | 28.0% | 6.7% | +34 | — |
| 2026-10-24 08:00 | -2.00% | — | — | 0.00039% | 27.4% | 6.5% | +33 | — |
| 2026-10-24 07:00 | -1.72% | — | — | 0.00075% | 34.5% | 8.2% | +32 | — |
| 2026-10-24 06:00 | -1.29% | — | — | 0.00106% | 39.3% | 9.3% | +31 | — |
| 2026-10-24 05:00 | -0.78% | — | — | 0.00125% | 100.0% | 97.2% | +30 | — |
| 2026-10-24 04:00 | +1.08% | — | — | 0.00125% | 100.0% | 97.2% | +29 | — |
| 2026-10-24 03:00 | -0.04% | — | — | 0.00125% | 100.0% | 97.2% | +28 | — |
| 2026-10-24 02:00 | +1.87% | — | — | 0.00125% | 100.0% | 97.2% | +27 | — |
| 2026-10-24 01:00 | -1.46% | — | — | 0.00108% | 39.3% | 9.3% | +26 | — |
| 2026-10-24 00:00 | -2.30% | — | — | 0.00019% | 21.4% | 5.1% | +25 | — |
| 2026-10-23 23:00 | -1.12% | -0.14% | -0.08 | 0.00125% | 100.0% | 97.2% | +24 | ↓↓ |
| 2026-10-23 22:00 | -3.57% | -0.16% | -0.07 | 0.00125% | 100.0% | 97.2% | +23 | ↓↓ |
| 2026-10-23 21:00 | -0.98% | -0.15% | -0.19 | 0.00022% | 22.6% | 5.4% | +22 | ↓↓ |
| 2026-10-23 20:00 | -0.60% | -0.14% | -0.14 | 0.00125% | 100.0% | 97.2% | +21 | ↓↓ |
| 2026-10-23 19:00 | -1.43% | -0.03% | -0.09 | 0.00125% | 100.0% | 97.2% | +20 | ↓↓ |
| 2026-10-23 18:00 | +0.12% | +0.12% | -0.03 | 0.00125% | 100.0% | 97.2% | +19 | ↑↑ |
| 2026-10-23 17:00 | -0.38% | +0.14% | -0.11 | 0.00125% | 100.0% | 97.2% | +18 | ↓↑ |
| 2026-10-23 16:00 | -1.06% | +0.18% | 0.07 | 0.00125% | 100.0% | 97.2% | +17 | ↓↑ |
| 2026-10-23 15:00 | -0.76% | +0.15% | 0.12 | 0.00125% | 100.0% | 97.2% | +16 | ↓↑ |
| 2026-10-23 14:00 | -0.80% | -0.04% | 0.02 | 0.00125% | 100.0% | 97.2% | +15 | ↓↓ |
| 2026-10-23 13:00 | -0.23% | -0.24% | -0.06 | 0.00078% | 34.5% | 8.2% | +14 | ↓↓ |
| 2026-10-23 12:00 | -0.65% | -0.18% | -0.01 | 0.00077% | 33.3% | 7.9% | +13 | ↓↓ |
| 2026-10-23 11:00 | -0.09% | -0.22% | -0.13 | 0.00125% | 100.0% | 97.2% | +12 | ↓↓ |
| 2026-10-23 10:00 | -0.80% | -0.21% | -0.25 | 0.00109% | 36.9% | 8.8% | +11 | ↓↓ |
| 2026-10-23 09:00 | -0.45% | -0.28% | -0.07 | 0.00116% | 36.9% | 8.8% | +10 | ↓↓ |
| 2026-10-23 08:00 | +0.50% | -0.37% | -0.12 | 0.00090% | 36.3% | 8.6% | +9 | ↑↓ |
| 2026-10-23 07:00 | -0.13% | -0.36% | -0.16 | 0.00068% | 31.0% | 7.4% | +8 | ↓↓ |
| 2026-10-23 06:00 | -0.22% | -0.37% | -0.33 | 0.00034% | 23.8% | 5.7% | +7 | ↓↓ |
| 2026-10-23 05:00 | +0.42% | -0.31% | -0.16 | 0.00048% | 26.8% | 6.4% | +6 | ↑↓ |
| 2026-10-23 04:00 | +0.77% | -0.80% | -0.12 | 0.00125% | 100.0% | 97.2% | +5 | ↑↓ |
| 2026-10-23 03:00 | +1.46% | -0.83% | -0.16 | 0.00062% | 28.0% | 6.7% | +4 | ↑↓ |
| 2026-10-23 02:00 | +2.36% | -0.94% | -0.28 | 0.00022% | 22.6% | 5.4% | +3 | ↑↓ |
| 2026-10-23 01:00 | +0.13% | -0.71% | -0.62 | 0.00010% | 19.6% | 4.7% | +2 | ↑↓ |
| 2026-10-23 00:00 | +1.86% | -0.09% | -0.15 | 0.00036% | 23.8% | 5.7% | +1 | ↑↓ |
| 2026-10-22 23:00 | +1.87% | -0.10% | -0.26 | -0.00013% | 15.5% | 3.8% | -1 | ↑↓ |
| 2026-10-22 22:00 | +1.10% | -0.76% | -0.05 | 0.00074% | 28.0% | 6.7% | +4 | ↑↓ |
| 2026-10-22 21:00 | +3.57% | -1.40% | -0.03 | 0.00013% | 19.6% | 4.7% | +3 | ↑↓ |
| 2026-10-22 20:00 | +0.62% | -2.39% | -0.17 | 0.00021% | 20.2% | 4.9% | +2 | ↑↓ |
| 2026-10-22 19:00 | -0.03% | -2.35% | -0.84 | 0.00067% | 24.4% | 5.8% | +1 | ↓↓ |
| 2026-10-22 18:00 | -0.69% | -1.77% | -0.63 | -0.00088% | 8.3% | 1.9% | -5 | ↓↓ |
| 2026-10-22 17:00 | -2.46% | -0.58% | -0.93 | -0.00096% | 6.5% | 1.5% | -4 | ↓↓ |
| 2026-10-22 16:00 | -4.46% | +0.27% | -0.14 | -0.00061% | 10.7% | 2.5% | -3 | ↓↑ |
| 2026-10-22 15:00 | -4.10% | +0.04% | -0.34 | -0.00213% | 0.6% | 0.1% | -2 | ↓↑ |
| 2026-10-22 14:00 | -2.93% | +0.31% | 0.40 | -0.00152% | 2.4% | 0.6% | -1 | ↓↑ |
| 2026-10-22 13:00 | -2.33% | -0.42% | -0.20 | 0.00071% | 22.0% | 5.3% | +2 | ↓↓ |
| 2026-10-22 12:00 | +1.09% | +0.92% | -0.34 | 0.00012% | 16.1% | 3.9% | +1 | ↑↑ |
| 2026-10-22 11:00 | +0.08% | +1.14% | -0.10 | -0.00081% | 7.7% | 1.8% | -5 | ↑↑ |
| 2026-10-22 10:00 | +0.21% | -0.56% | -0.23 | -0.00160% | 1.8% | 0.4% | -4 | ↑↓ |
| 2026-10-22 09:00 | -0.73% | -0.51% | 0.98 | -0.00220% | 0.0% | 0.0% | -3 | ↓↓ |
| 2026-10-22 08:00 | -2.77% | -1.56% | -0.14 | -0.00004% | 11.3% | 2.8% | -2 | ↓↓ |
| 2026-10-22 07:00 | -1.50% | -1.44% | -1.55 | -0.00038% | 8.3% | 2.1% | -1 | ↓↓ |
| 2026-10-22 06:00 | -1.49% | +0.14% | -0.18 | 0.00125% | 100.0% | 97.2% | +25 | ↓↑ |
| 2026-10-22 05:00 | -1.93% | +0.42% | 0.05 | 0.00125% | 100.0% | 97.2% | +24 | ↓↑ |
| 2026-10-22 04:00 | -3.00% | +0.27% | -0.03 | 0.00125% | 100.0% | 97.2% | +23 | ↓↑ |
| 2026-10-22 03:00 | -3.39% | +1.77% | -0.16 | 0.00125% | 100.0% | 97.2% | +22 | ↓↑ |
| 2026-10-22 02:00 | -4.35% | +4.06% | 0.08 | 0.00125% | 100.0% | 97.2% | +21 | ↓↑ |
Caveats:
This is a measurement view (QA, not a signal). Features are
computed_at = XX:08 — not available at XX:00.
Percentiles require ≥80% window coverage; null means the
dataset isn't deep enough yet.