VOL. I · NO. 119 · standardpoorly.comTHU · MAY 28 · 2026FORWARD HORIZON · 1 d / 1 wk / 1 mo / 3 mo
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PoorlyweatherSP-4356

Charlotte Temperature

Mean daily temperature (Charlotte, C).

the verdict —
At the 252d horizon, this signal hits in the predicted direction 52% of fires. Mean SPY forward return when it lights: +0.18%. Status: OOS validated. n = 6384. Bullish on the underlying when fired.

Current state

Latest value · 2026-05-18
26.4
vs ~6 weeks ago
3.1%
vs 60 days ago
184%
vs 7 days ago
54%
last 90 observations · 2026-02-18 2026-05-18

The series — full history

Daily readings, every reading we have. Pick a window with the time-period buttons; flip to candles via the global toggle in the masthead (or press C). Toggle the SPY overlay to see how this series and the S&P 500 have moved together.

Charlotte Temperature
26.40 +8.20 (+45.05%) over 1Y
Hover for date + value · Toggle SPY to compare relative move
27.9618.789.600.4200-8.76Sep 25Nov 25Jan 26Mar 26May 26
2025-09-09 → 2026-05-18 · 252 bars

What it has historically predicted

Historically barely better than chance over the next year. We surface this for transparency, not because we'd trade on it.

49%
−0.03%
1 d
49%
−0.02%
1 wk
48%
−0.12%
1 mo
52%
+0.00%
3 mo
52%
−0.23%
6 mo
52%
+0.18%
1 yr

Beyond SPY — how this signal performs across markets

Same fire days, different forward returns. Each row asks: when this signal fires, what does that asset do? The big number is the average return; underneath is how often the asset moved the same direction as the signal (50% would be a coin flip).

target
1 d
1 wk
1 mo
3 mo
6 mo
1 yr
SPY
S&P 500 ETF
n=6,384
-0.03%
49% same direction
-0.02%
49% same direction
-0.12%
48% same direction
+0.00%
52% same direction
-0.23%
48% same direction
+0.18%
52% same direction
WTI
crude oil
n=6,402
+0.01%
49% same direction
-0.23%
49% same direction
-0.87%
45% same direction
-3.8%
41% same direction
-4.1%
45% same direction
-1.1%
47% same direction
Analyst · 6 moreGold · BTC · Copper · DXY · MOVE · VNQ see the full 8-target matrix with bootstrap confidence intervals.Join waitlist →

Each fire in history — when the signal popped, what SPY did next

Each bar is one historical fire — the indicator's value moved 2.5+ standard deviations from its rolling 180 trading-day mean (~9 months), or for monotonic “days since” indicators, crossed an 80th/90th/95th/99th percentile. Bar height = SPY's forward return at the selected horizon, signed by signal direction. Green above zero means the market moved with the signal; red below zero means it moved against.

horizon:
0 fires · 0% positive · avg +0.00%
−5.0%−2.5%0%+2.5%+5.0%
Each bar = one fire day (|z|≥2.5 from 180-day rolling baseline). Bar height = SPY return over the the next year, signed by signal direction. Dashed line = average across fires.
Regime-tuned params · AutoResearch v13Analyst · preview
Regime matters
This indicator's strongest predictive edge sits in Low VIX (calm): tuned σ = 2.5, window = 240d, horizon = 126d, hit-rate deviation from chance = 50.0pp.
RegimeσWindowHorizonHit dev
Low VIX (calm)2.50240d126d50.0pp
Normal VIX2.75240d63d50.0pp
High VIX (stress)2.50240d126d50.0pp

Hit-rate deviation = |hit% − 50%| at the row's tuned horizon. Big deviation = strong directional edge in that regime. Regimes split by daily VIX terciles (low / normal / high) over a 1-year rolling window. Analyst + Trader subscribers will be able to filter the home grid and the fire-history bar chart by regime.

shaded cell = each row's strongest horizon (green = bullish forward return, red = bearish)“same direction” means the asset moved the same way the signal moved — opposite of a coin flip.