The framework

One order path, used five times.

SkyQ is the shared machinery behind every book: how a signal becomes an order, what a fill is assumed to cost, and what happens when a book stops behaving. The books differ in their rules. They do not differ in how they trade.

01 — The order path

Six steps, no branches.

A signal that cannot be executed by this path is not a signal. That constraint is what keeps five strategies from becoming five different businesses.

Step 01 · 5-minute close

Evaluate on the completed bar

Each book recomputes its own features from raw OHLCV. No indicator is trusted from a cache, and no decision is taken on a bar that has not closed.

Step 02 · Gates

Refuse the trade if the tape is wrong

Stale data, a spread wider than the model, a bar older than the timeout, or a book at its contract cap: any one of them drops the signal and logs why.

Step 03 · Pricing

Reprice the contract at the signal level

The chain snapshot is not trusted for delta at signal time. The contract is repriced from the underlying print, so the limit reflects the market as it is, not as it was when the chain was polled.

Step 04 · Entry

A marketable limit through the spread

Never a market order. The limit is priced a defined number of ticks through the touch, so a fast tape cannot take an unbounded fill while a passive one still has a chance to improve.

Step 05 · Bracket

Stop, target and time exit in one batch

The children are submitted with the entry as an OCA group. The position is never naked, and no exit depends on the process waking up at the right moment to place it.

Step 06 · Flatten

Nothing rests overnight

A hard flatten before the close cancels any unfilled entry and closes anything still open. Overnight gap risk is not part of the model, so it is not part of the book.

Why one path matters

Five strategies with five executors is five places for a fill assumption to drift, five stop-loss implementations to audit and five ledgers to reconcile. Here there is one executor and one ledger; a book is a rule set that produces a signal object, and nothing else.

What the books do not control

  • They cannot size beyond the contract cap.
  • They cannot place a second entry after a stop.
  • They cannot widen a stop or extend a time exit.
  • They cannot trade outside the regular session.
One process, one account, one failure mode

Five books in one account means a broker or network failure hits all of them at once. That is an accepted trade-off for a desk of this size, and it is why the governor — not the books — owns the kill switch.

02 — The fill assumption

The edge is a passive fill. Say it plainly.

Exits are modelled as resting limit orders that fill when the underlying touches the level. Re-run the same 9,251 signals with the opposite assumption — exit at the printed close of the touch minute — and every book loses. This is the most important number in the plan.

BookNet, resting limitsNet, close of touchSwing
SkyQ WICK+$10,184−$4,477−$14,661
SkyQ LEVEL+$29,993−$26,358−$56,351
SkyQ RANGE+$11,542−$16,274−$27,816
SkyQ SIGMA-S+$16,433−$11,944−$28,377
SkyQ SIGMA-Q+$16,931−$11,664−$28,595
Portfolio$95,038−$70,717−$165,755

Same signals, same contracts, same fees. The only difference is whether an exit gets the passive fill or pays the printed price. Hypothetical in both columns.

What we assume

Touch equals fill

A resting limit at a level is filled when the underlying trades through that level. No queue position, no partial fill, no improvement.

Why it is not silly

The orders really do rest

These are GTC limit exits sitting in the book before the level is reached, not orders typed after the fact. That is a materially different claim from a backtest that fills at the close.

Why it is still a risk

Queue position is real

On a fast touch, the resting order may be behind size that clears first. The first live quarter measures this per book, in cents per contract, and the answer decides whether the desk scales.

03 — The fee model

Tradier Pro at $0.21 a round trip.

Fee structure is not a footnote at 722.8 trades a month — it is roughly 40% of the gross edge at retail pricing, and about 2% at Tradier Pro. The whole replay was re-priced on this schedule.

Line itemTradier ProPer round trip12.8 months (9,251 RT)
Equity & ETF option commission$0.00 per contract$0.00$0
Clearing$0.0775 per contract, each side$0.155$1,434
ORF$0.02 per contract, each side$0.04$370
Exchange / regulatory feespass-through≈$0.015$139
Platform$10 per month—$128
All-inTradier Pro$0.21$2,071

TAF is $0.00 through 31 December 2026 and is not modelled after that. Index options are $0.35 per contract on this schedule; the desk trades ETF options only. Compare: the same 9,251 round trips at $1.30 would cost $12,026.

04 — The risk governor

The only component allowed to override a signal.

A strategy cannot be trusted to stop itself; the thing that stops it has to sit outside the strategy. These are the invariants the governor enforces on every cycle.

✓Contract cap per book. One contract per signal at launch. Scaling is a capital decision, not a signal decision.
✓Floor recalculated nightly. Maximum concurrent premium plus that book's worst drawdown; a book that cannot cover its floor does not open.
✓Kill switch. Drawdown past the book's limit flattens it, disables it, and writes a report. No automatic restart.
✓No re-entry after a stop. The day is over for that book, whatever the tape does next.
✓No martingale, no averaging. Position size never depends on the last outcome.
✓Hard flatten at 15:59:30 ET. Nothing carries overnight, including unfilled entries.

Why long premium only

A debit is a defined loss. There is no assignment to manage, no short-gamma tail, no margin call at the worst moment, and the cash floor can be computed before the trade rather than discovered after it. The desk gives up the higher win rate of premium selling in exchange for a loss that cannot exceed what was paid.

The cost of that choice

Long premium bleeds theta and pays the spread twice. Every book has to clear that drag before it earns a dollar, which is why the trade counts are high and the holds are short: minutes, not days.

05 — Limits

What the framework does not do.

Not a predictor

No forecast of direction

Each book is a conditional response to a completed bar. It has no view on where the index closes, and no model that claims one.

Not adaptive

No live parameter fitting

Parameters were fixed before the replay and are not re-optimised on live data. Re-fitting in production is how a backtest becomes a story.

Not proven

No live record yet

12.8 months, one volatility regime, no broker statement. The first live quarter is a measurement exercise, and it can fail.