NOSTRADAMUS · Position Analytics Engine

SIMULATOR Will the Fed decrease interest rates by 25 bps after the June 2026 meeting?

A live, interactive instrument for dissecting a single binary position. Sweep the inputs and watch every indicator recompute — payoff geometry, Kelly growth, Bayesian posterior, KL divergence, cost waterfall, Monte-Carlo equity fan, forecast calibration. Companion to the live /feed/pm-will-the-fed-decrease-interest-rates-by-25-bps-after-the-june-2026-meeting page.

▲ YES EDGE · +0.018 · f★ 1.8% · deploy 0.9% · net 1.00pp

§1 · Position economics

Payoff diagram · binary contract P/L vs resolution
YES · Expected P/L per share +0.0175@ model P(YES) = 0.020
-1.00-0.50+0.00+0.50+1.000.000.200.400.600.801.00price 0.003model 0.020YES resolution priceP/L per $1 contract
P/L per sharemarket pricemodel Pprofit zoneloss zone
Profit is linear in the eventual settlement price.
Kelly growth curve · g(f) with f★ and deployed f markers
f★ = 1.75% · g(f★) = 2.424%deploy 0.88% · g = 2.145%
-9.27%-6.25%-3.24%-0.23%2.79%0%8%16%24%32%40%f★ optimumdeployfraction of bankroll fexpected log-growth g(f)
g(f)f★ optimumdeployed fgrowth zone
Underbet leaves growth on the table; overbet destroys capital. The interior maximum is f★.

§2 · The trade ticket

Trade ticket · dollar outcomes at this stake
YES @ 0.003 · EV +$1,535stake $219 · 0.88% of bankroll
Deployed stakestake
$219
0.88% of bankroll
Sharesunits
87,719
each pays $1 if YES
Max payoutwin
$87,719
gross, if win
Max profitwin
+$87,500
net of cost
Max losslose
-$219
binary settles to $0
Payout multiple×
×400.00
$1 → $400.00
Risk:RewardR:R
399.00 : 1
win $399.00 per $1
Expected P/LE[P/L]
+$1,535
probability-weighted
OutcomeP(model)P/LContribution
Resolves YES (win)2.0%+$87,500+$1,750
Resolves against (lose)98.0%-$219-$215
Expected value100.0%+$1,535
What you actually win and lose. The bottom table tabulates probability-weighted P/L by outcome.

§3 · Break-even & cushion

Break-even & cushion · margin of safety
Cushion +1.8 pprelative edge +700.0%
Required win ratebreak-even
0.3%
price = implied probability
Model win rateP(win)
2.0%
what you forecast
Cushionedge
+1.8 pp
margin of safety
Fair pricemodel
0.020
where you think it should trade
-60-3003060020406080100you @ 0.3%market price (%)cushion (pp)
The market price equals the win rate you must beat to make money.

§4 · Odds conversion

Implied probability, decimal, American, fractional
Implied probabilityP
0.3%
= price
Decimal oddsEU
400.000
total return per $1
AmericanUS
+39900
$100 wins $39900
FractionalUK
399.00 / 1
profit per $1 risked
Profit per $100stake
+$39900.00
clean dollar framing
-1000-5000+500+1000020406080100you · 0.3%implied probability (%)American odds
underdog (+)favorite (-)your price
Five views of the same number.

§4b · Time & annualized return

Time & APR · capital lockup vs annualized return
APR 12167% · APY 497237712236503808%ROI 700.0% over 21d · 17.4 turns/yr
Time to resolvehorizon
21.0 d
504h capital lockup
Raw ROIper resolve
+700.0%
APR (simple)scaled
+12167%
ROI × 365/days
APY (compounded)if redeployed
+497237712236503808%
(1+ROI)^(365/d) − 1
Daily expectedper day
+10.41%
geometric, per day held
Capital turns/yrvelocity
×17.4
how often this slot recycles
0%109392296692030848%218784593384061696%328176890076092480%437569186768123392%546961483460154176%121416180100120now 21ddays to resolutionannualized return (capped 1000%)
simple APRcompounded APYyour horizon
Rank positions by APR, not raw ROI. A thin edge tomorrow beats a fat edge next year.

§5 · Costs & net edge

Cost waterfall · gross edge → net of friction
Net edge +1.00 pperosion 43% · break-even w/ fees 1.0%
-0.1pp0.4pp0.9pp1.3pp1.8pp2.3pp+1.75Gross edge-0.75- ½ spread+0.00- entry fee+0.00- exit fee+1.00Net edgeEV / share (pp)
gross edgefrictionnet edgefee 0 bps · spread 1.50¢
The number that decides whether to trade.

§6 · Sizing menu

Sizing menu · disciplined deployment
Full Kellyf★
$439
1.75% · g = 2.424%
Half Kelly½ f★
$219
0.88% · g = 2.145%
Quarter Kelly¼ f★
$110
0.44% · g = 1.592%
Flat 1%1%
$250
1.00% · g = 2.230%
Flat 2%2%
$500
2.00% · g = 2.410%
Flat 5%5%
$1,250
5.00% · g = 1.058%
Recommended¼ f★
$110
survives model error
$0$369$738$1,106$1,475$439Full Kelly1.75%$219Half Kelly0.88%$110Quarter Kelly0.44%$250Flat 1%1.00%$500Flat 2%2.00%$1,250Flat 5%5.00%
Quarter-Kelly is the industry default — survives model error far better than full Kelly.

§7 · Information theory

Binary entropy · uncertainty in bits
Market entropyH(p)
0.025 bit
max 1.0 at p = 0.5
Your entropyH(q)
0.141 bit
Δ +0.116 bit vs market
Surprise · YES−log₂ p
8.64 bit
self-information
Surprise · NO−log₂(1−p)
0.00 bit
self-information
0.000.260.530.791.050.00.20.40.60.81.0marketmodelprobabilityH (bits)
H(p) peaks at p = 0.5 (one bit of irreducible doubt).
KL divergence · upper bound on exploitable edge
SIGNAL · D_KL(q ‖ p) = 0.0242 nat (0.0350 bit)exploitable edge present
-0.022-0.0030.0160.0350.0540.0416YES branch-0.0173NO branchΣKL = 0.0242 natKL contribution (nat)
YES contributionNO contributionbelief ‖ marketsignal
Zero KL ⇒ you know nothing the crowd doesn't.

§8 · Bayesian inference

Bayesian posterior · prior + evidence → belief with 95% CI
MARKET PRICE INSIDE 95% CIposterior μ 0.020 · CI [0.00, 0.30] · κ 4.4
Posterior meanE[θ]
0.020
Beta(0.1, 4.4)
95% credible intervalHDI
[0.00, 0.30]
price INSIDE → weak edge
Concentrationκ
4.4
pseudo-obs behind belief
Disagreementvs crowd
+0.0 pp
posterior − price
0.000.200.400.600.801.00marketposterior μprobability θposterior density
market prior (dashed)model posterior95% credible bandmarket price
When the market price falls outside the 95% credible interval, your disagreement is statistically meaningful.

§9 · Tail risk · Monte-Carlo (mode A · single position to resolution)

Mark-to-market MC · single position held to resolution
E[P/L] +800.0% · P(YES) 2.3% · VaR₉₅ 100.0%400 paths · 504 bars to resolution
Expected P/Lper $1
+800.00%
P(YES) empiricalq
2.3%
Best pathmax
+39900.0%
Worst pathmin
-100.0%
VaR 95%5%
100.0%
CVaR 95%ES
100.0%
25¢50¢75¢100¢084168252336420504entry 0.3¢model q 2.0¢bars until resolutionprice path
median path25/75 + 5/95 bandsentry pricemodel q
Logit-space mean-reverting walk + terminal flip with probability q. Answers: 'what happens to THIS one position'. Distinct from the repeated-edge fan below.

§9b · Tail risk · Monte-Carlo (mode B · repeated independent edges)

Monte-Carlo equity fan · this profile, repeated 400× independently
Median CAGR/bet 5.57% · ruin rate 4.0%400 paths × 120 bets · f deploy 0.88%
Sharpe / betμ/σ
0.192
μ 13.28% · σ 69.0%
Sortino / betμ/σ↓
15.142
downside-only denominator
VaR 95%5%
-0.9%
per-bet worst-case
CVaR 95%ES
-0.9%
mean tail loss
Max drawdownMDD
-19.8%
Calmar 0.28
Ruin rate≤50%
4.0%
P(equity ever ≤ 50%)
0.50×16120.55×32240.60×48360.65×64480.70×80600.76×020406080100120startruin 50%bet #bankroll multiple
median25/75 band5/95 bandruin line
Answers a different question: 'if I could find this exact edge forever, what is the bankroll trajectory'. Compounds 120 sequential resolutions which is NOT what happens to a single position.

§10 · Base-rate & macro context

Probability stack · base rate vs crowd vs model
ANCHORED · supported by convictionanchor gap -43.3pp · crowd gap -45.1pp
0%20%40%60%80%100%Reference base rate45.3%Market price0.3%Model P(YES)2.0%
Anchor gapmodel − base
-43.3 pp
Crowd gapprice − base
-45.1 pp
Verdictdiscipline
ANCHORED
Reference-class anchoring prevents narrative-driven blowups.

§11 · Forecast quality (synthetic ledger)

Brier · Murphy decomposition · reliability · ROC
SKILL POSITIVE · in-sample BSS 13.7% · AUC 0.735out-of-sample BSS (5-fold) 13.7% ± 1.1% · Brier 0.2153 · log-loss 0.6442 · n 1600n = 1600
BrierBS
0.2153
lower = better · ō 0.52
BSSvs base
13.7%
improvement over base rate
ReliabilityREL
0.0074
miscalibration · want ↓
ResolutionRES
0.0420
decisiveness · want ↑
Log lossLL
0.6442
cross-entropy
AUCROC
0.735
0.5 coin · 1.0 oracle
0.00.20.40.60.81.00.00.20.40.60.81.0stated probability fobserved frequency ō0.00.20.40.60.81.00.00.20.40.60.81.0AUC = 0.735false positive ratetrue positive rate0.0000.0750.1500.2250.2990.250UNC0.042RES0.007REL0.215BRIERcontribution
calibration curveROCUNC (irreducible)RES (skill, ↑)REL (miscalib, ↓)
Computed on a seeded synthetic forecast ledger. Reseed (⟳) to redraw.

§12 · Journal vitals (synthetic ledger)

Track record · win rate · PF · expectancy · CLV · equity curve
PROFITABLE · PF 1.25 · expectancy +0.117R180 trades · win 53.9% · Sharpe 0.097
Total P/Lnet
+$5,257
on $45,000 cycled
Win ratehit %
53.9%
97 W / 83 L
Profit factorPF
1.25
$ won / $ lost
Expectancyper trade
+$29.20
avg $ per position
R-expectancyper risk
+0.117R
in units of risk taken
Avg win / losspayoff
$268.11 / -$250.00
ratio 1.07 : 1
Sharpe / traderisk-adj
0.097
μR / σR
Closing line valueCLV
+3.47 pp
avg edge vs close
-$633$1,032$2,698$4,363$6,02803672108144180trade #cumulative P/L (USD)
cumulative P/Lprofitable zonered zonesynthetic · seeded from asset
The scorecard every trader checks. Synthetic ledger seeded from the asset slug — recomputes against your real fill history once wired.

▸ Advanced metrics · M2M bundle

polymarket · will-the-fed-decrease-interest-rates-by-25-bps-after-the-june-2026-meeting · fresh · feed 8s old
24h sparkline · 60 pts
realized vol (ann.)
0.00%
max drawdown
0.00%
sharpe
ulcer index
0.00%
RMS drawdown
pain index
0.00%
mean drawdown
mod. VaR 95%
0.00%
Cornish-Fisher
martin ratio
ret / ulcer
CDaR 95%
0.00%
cond. drawdown
gain/pain
Σgain / Σ|loss|
sterling
ret / CDaR
omega (θ=0)
1.00
upside/downside
roll spread
0.0 bps
implied (price-only)
bars used
2000
store
spread
24h Δ
flow lean
carry
flat
signalNEUTRALconfidence 20%
Same bundle via M2M API: /api/m2m/pm-will-the-fed-decrease-interest-rates-by-25-bps-after-the-june-2026-meeting/bundle · venue execution: polymarket