SneakerPulse Backtest Engine

Quantitative Analysis & Prediction Model for Stranger Things x Nike Air Foamposite One

Monte Carlo Simulation | Retail-to-Resell Ratio Weighting | 1754 sales analyzed

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Prediction ModelST WeaponST Chuck 70ST Field GeneralST LD 1000ST Air Max 1

Stranger Things x Nike Foamposite One Prediction

Retail: $250 | Release: Feb 27, 2026 10:00 AM EST (SNKRS) | SKU: IR7336 001 | 10000 MC simulations

Predicted Day-1 Price
$343
$320 - $365 (90% CI)
Optimal Sell Day
Day 14
Peak at $404
Day-7 Expected ROI
+52.2%
43.1% to 61.3%
Day-30 Expected ROI
+42.9%
29.1% to 57.3%
VaR 95% (Day 7)
43.1%
Max loss at 95% confidence
Pre-Release Signal
$331
1.32x retail (414 pre-release sales)

Retail-to-Resell Ratio Weighting

Comparable shoes are weighted by how closely their retail-to-resell ratio matches the Foamposite's 1.32x ratio. Shoes with similar demand-to-price dynamics get exponentially more influence on predictions. Volume is also factored in — more sales data means more reliable signal.

Release Day Intraday Price Prediction

15-minute intervals for first 24h, 30-minute for next 24h — based on 4 comparable release curves

▲
Peak Price Window
$362
+18.2h after release
▼
Best Buy Window
$285
+11.2h after release
★
Volume Spike
+47h
Highest trading activity

48-Hour Price Forecast (15-min / 30-min intervals)

Expected Relative Sales Volume

Predicted Price Trajectory with 90% CI (Days 0-90)

Comparable Overlay (Normalized)

Risk Metrics (VaR & ES)

ROI Predictions by Horizon

HorizonPred. PriceMean ROI5th Pctl95th PctlVaR 95%Exp. Shortfall
Day 1$343+37.0%+28.1%+45.8%28.1%26.0%
Day 7$380+52.2%+43.1%+61.3%43.1%40.7%
Day 14$404+61.8%+50.1%+73.6%50.2%47.3%
Day 30$357+42.9%+29.1%+57.3%29.1%25.5%
Day 60$286+14.5%+1.8%+27.3%1.8%-1.2%
Day 90$251+0.6%-10.7%+12.2%-10.7%-13.7%

Size-by-Size Price Predictions

SizeDay 1Day 7 AvgDay 7 RangeDay 7 ROIDay 30 AvgDay 30 RangeDay 30 ROI
7$351$390$360 - $421+56.1%$367$330 - $405+46.9%
7.5$348$387$356 - $418+54.9%$364$328 - $402+45.8%
8$344$382$352 - $413+52.9%$359$323 - $396+43.6%
8.5$338$376$346 - $406+50.2%$353$318 - $389+41.2%
9$331$368$339 - $397+47.1%$346$312 - $382+38.6%
9.5$324$360$332 - $389+44.0%$339$305 - $374+35.6%
10$318$353$325 - $381+41.3%$332$299 - $366+32.9%
10.5$313$347$320 - $375+38.9%$327$294 - $361+30.8%
11$310$344$317 - $372+37.6%$324$291 - $358+29.5%
11.5$309$343$316 - $371+37.3%$323$291 - $357+29.3%
12$312$346$319 - $374+38.6%$326$293 - $359+30.4%
13$329$366$338 - $395+46.5%$345$310 - $380+37.9%
14$368$409$377 - $442+63.5%$385$346 - $425+54.0%

Comparable Weights (Retail-to-Resell Ratio)

ComparableRetailResell/RetailDist from TargetSales VolumeWeight
Stranger Things x Converse Weapon 'Laser Blue'$1301.62x0.294610%
Stranger Things x Converse Chuck 70 Hi 'Magnet'$1101.80x0.4725711%
Stranger Things x Nike Field General High 'Eleven'$1351.30x0.0214229%
Stranger Things x Nike Wmns LD 1000 'Erica Sinclair'$1051.22x0.104917%
Stranger Things x Nike Air Max 1 'Steve Harrington'$1801.27x0.0584631%

Methodology

  • Exponential Decay: P(t) = a·e-λt + c models post-release hype premium decay.
  • Ratio-Based Weighting: Comparables weighted by proximity of their retail-to-resell ratio to the target's 1.32x ratio. Exponential decay penalty: w = e-2.5·|rcomp-rtarget| × volume bonus.
  • Monte Carlo: 10000 sims with perturbed parameters (a±15%, λ±20%, c±10%) plus volatility noise.
  • Size Premiums: Polynomial regression on size-price data averaged across comparables.
  • VaR & ES: From MC return distribution. VaR95 = worst 5th percentile. ES = avg below VaR.
  • Pre-Release Signal: 414 actual transactions at avg $331 calibrate demand.
  • Pre-Release Discount: Comparables show 7.3% avg price change from pre-release to release day. Applied as smoothing factor (fades over 14 days).
  • Intraday Prediction: 15-min buckets for first 24h, 30-min for next 24h from 4 comparables, normalized and weighted, with 5000 MC sims.

Live Results vs Prediction

Real-time sales data overlaid on our predictions — how accurate is the model?

Stranger Things x Converse Weapon 'Laser Blue'

Converse WeaponSKU: A17934CReleased: 2025-12-04Retail: $130Weight: 10.7%
Total Sales
46
Mean
$186
Median
$180
Std Dev
$44
Skewness
1.65
Kurtosis
4.79
Pre-Rel Sales
5
Pre-Rel Premium
61.5%
7d Avg
$195
30-60d Avg
$191
Momentum
1.02x
Collab Mult
2.77x
Retail/Resell Ratio
1.62x
Model Weight
10.7%
Exp Decay: P(t) = 164.5 × e-0.0484t + 128.0

Price Trajectory

Daily Volume

Size Premium

Price/Retail

ROI by Horizon

HorizonEst. PriceROI
Day 1$285+56.7%
Day 7$245+49.4%
Day 14$211+22.9%
Day 30$166+34.6%
Day 60$137+5.4%
Day 90$130+0.1%

Stranger Things x Converse Chuck 70 Hi 'Magnet'

Converse Chuck 70SKU: A17933CReleased: 2025-12-04Retail: $110Weight: 11.0%
Total Sales
257
Mean
$211
Median
$197
Std Dev
$54
Skewness
1.47
Kurtosis
2.74
Pre-Rel Sales
43
Pre-Rel Premium
79.6%
7d Avg
$205
30-60d Avg
$206
Momentum
1.00x
Collab Mult
4.09x
Retail/Resell Ratio
1.80x
Model Weight
11.0%
Exp Decay: P(t) = 275.9 × e-0.0555t + 140.7

Price Trajectory

Daily Volume

Size Premium

Price/Retail

ROI by Horizon

HorizonEst. PriceROI
Day 1$402+84.0%
Day 7$328+86.3%
Day 14$268+125.7%
Day 30$193+88.3%
Day 60$151+185.5%
Day 90$143+29.6%

Stranger Things x Nike Field General High 'Eleven'

Nike Field GeneralSKU: IM3875 100Released: 2025-12-04Retail: $135Weight: 29.3%
Total Sales
142
Mean
$163
Median
$164
Std Dev
$34
Skewness
-0.29
Kurtosis
0.17
Pre-Rel Sales
17
Pre-Rel Premium
30.2%
7d Avg
$169
30-60d Avg
$181
Momentum
0.94x
Collab Mult
1.78x
Retail/Resell Ratio
1.30x
Model Weight
29.3%
Exp Decay: P(t) = 148.2 × e-0.0139t + 72.2

Price Trajectory

Daily Volume

Size Premium

Price/Retail

ROI by Horizon

HorizonEst. PriceROI
Day 1$218+23.2%
Day 7$207+32.9%
Day 14$194+33.9%
Day 30$170+23.2%
Day 60$137+24.4%
Day 90$115-15.1%

Stranger Things x Nike Wmns LD 1000 'Erica Sinclair'

Nike LD 1000SKU: IM3887 500Released: 2025-12-04Retail: $105Weight: 17.4%
Total Sales
49
Mean
$129
Median
$125
Std Dev
$33
Skewness
0.31
Kurtosis
0.30
Pre-Rel Sales
5
Pre-Rel Premium
21.9%
7d Avg
$129
30-60d Avg
$143
Momentum
0.90x
Collab Mult
1.90x
Retail/Resell Ratio
1.22x
Model Weight
17.4%
Exp Decay: P(t) = 138.3 × e-0.0224t + 55.3

Price Trajectory

Daily Volume

Size Premium

Price/Retail

ROI by Horizon

HorizonEst. PriceROI
Day 1$191+23.8%
Day 7$174+45.2%
Day 14$156+66.7%
Day 30$126+48.9%
Day 60$91-13.0%
Day 90$74-29.8%

Stranger Things x Nike Air Max 1 'Steve Harrington'

Nike Air Max 1SKU: IM3906 100Released: 2025-12-04Retail: $180Weight: 31.6%
Total Sales
846
Mean
$243
Median
$225
Std Dev
$44
Skewness
1.01
Kurtosis
1.12
Pre-Rel Sales
176
Pre-Rel Premium
27.0%
7d Avg
$223
30-60d Avg
$285
Momentum
0.78x
Collab Mult
2.50x
Retail/Resell Ratio
1.27x
Model Weight
31.6%
Exp Decay: P(t) = 215.0 × e-0.0230t + 185.9

Price Trajectory

Daily Volume

Size Premium

Price/Retail

ROI by Horizon

HorizonEst. PriceROI
Day 1$396+22.9%
Day 7$369+34.0%
Day 14$342+39.9%
Day 30$294+58.8%
Day 60$240+64.8%
Day 90$213+18.3%

SneakerPulse Backtest Engine — For educational and research purposes only.

Data sourced from GOAT marketplace. Generated on 2026-02-20 12:15.