Paper trading, not investment advice. Every account and book on these pages trades paper money: the Alpaca paper accounts DAILY ($1,000,000 from Sep 30, 2026), INTRA1 ($100,000 from Sep 30, 2026) and INTRA2 ($100,000 from Sep 30, 2026); the simulated books SIM-TT ($100,000 from Sep 29, 2026), SIM-V2B ($100,000 from Sep 28, 2026) and SIM-V2B-TOM ($100,000 from Sep 28, 2026), filled at the official close; and market-analysis's ledgers, one contract per position against a $100,000 reporting equity. No real money is at stake. Positions, trades and P&L are published the same day, as the engines record them, with each number's source and cost model labelled. Nothing here is a recommendation to buy, sell or hold any security, and nothing is tailored to you. Each strategy is a pre-registered experiment, read once on a date or at a trade count fixed in advance; until then its record says little either way. I may hold or have held positions in securities shown here. Markets can and do lose money.

Trade

QQQ · Nasdaq opening-range retest

Opened Oct 21, 2026, closed Oct 21, 2026, in INTRA1.

The trade

Account: INTRA1
Strategy: Nasdaq opening-range retest
Book: pat
Symbol: QQQ
Asset class: equity
Side: long
Exposure: long
Status: closed
Opened: Oct 21, 2026
Closed: Oct 21, 2026
Quantity: 150
Entry price: 723.02
Exit price: 722.807266
Exit by: stop
Book value at entry: $43,966.23

Record Trade journal

Cost model

Alpaca paper fills, with no commission; Alpaca's SEC and CAT fees, charged by the day, are left out. Commission is estimated at $0.007 a share a side, the rate at the owner's own broker: the net P&L is the P&L less it; the P&L, the return, the P&L in basis points of the book and the R multiple are before it. The rule book's day return is the rule's own replay on SIP bars, after the research's own costs: $0.0035 a share a side in commission for the noise area and $0.007 for the other rules, and a cent a share of slippage on every fill except a resting limit order's and the noise area's exit at the close.

Result

Entry value: $108,453.00
Exit value: $108,421.09
P&L: −$31.91
Dividends: —
P&L with dividends: —
Costs: $2.10
Net P&L: −$34.01
Return: −0.03%
Of the book: −7.3 bp
R multiple: −0.07
Held: 248.2 minutes

Entry and exit

Role	Date	At (ET)	Side	Qty	Asked	Price	Rule's price	Close	Slippage	Against the close	How	Why	The rule's numbers
entry	Oct 21, 2026	10:54 ET	buy	150	150	723.02	723.04	—	−0.3 bp	—	—	long 150 QQQ: limit 723.03 (edge 723.040), target 728.872, stop 720.124, weight 2.48 (accepted)	4 trigger numbers range at 09:45:04 low 720.13 high 723.04 note range 720.13-723.04 event range setup at 10:50:05 px 723.22 bar 15 how limit qty 150 edge 723.04 note long 150 QQQ: limit 723.03 (edge 723.040), target 728.872, stop 720.124, weight 2.48 (accepted) side 1 stop 720.1239163851446 event setup limit 723.03 status accepted target 728.8721672297106 weight 2.4794899443782654 model_px 723.04 trend_up 1 range_low 720.13 range_high 723.04 filled at 10:54:53 how limit qty 150 note filled 150 at 723.02 (the rule's 723.040), minute 84 event filled minute 84 model_px 723.04 avg_price 723.02 inputs tick 0.006083614855411506 trend_up 1 1 number fills 1
exit	Oct 21, 2026	15:03 ET	sell	150	150	722.807266	723.04	—	+3.2 bp	—	stop	closing: stop	7 trigger numbers end at 15:02:55 why stop note closing: stop event closing minute 332 breakeven.at 11:38:04 breakeven.best 726.12 breakeven.note breakeven: stop -> 723.04 breakeven.stop 723.04 breakeven.event breakeven breakeven.minute 127 1 number fills 1

Orders

Role	Side	Kind	Qty	Limit	Model price	Status	Filled	Average	Sent (ET)	Filled (ET)
entry	buy	limit	150	723.03	723.04	filled	150	723.02	10:50 ET	10:54 ET
exit	sell	market	150	—	723.04	filled	150	722.807266	15:02 ET	15:03 ET

Path while held

Span: 250 minutes
High: 727.95
Low: 722.52
Best point (MFE): +0.68%
Worst point (MAE): −0.07%
Bars from: SIP 1-minute bars

The rule's own trade

The rule replayed on its own bars, beside the account's fills.

Matched the account: yes
Entry: 723.065 at 10:54 ET
Exit: 723.065 at 15:02 ET
Exit by: stop
The rule's day: −0.0%
The rule's trades that day: 1

best: 727.95
side: 1
stop: 719.7039163851447
tick: 0.006083614855411506
entry: limit
target: 729.7871672297108
exit_min: 332
entry_min: 84
live_stop: 723.065

Notes

the Nasdaq opening-range breakout with the trend filter, on QQQ

09:45:04 range 720.13-723.04
10:50:04 no more entries: one setup a day
10:50:05 long 150 QQQ: limit 723.03 (edge 723.040), target 728.872, stop 720.124, weight 2.48 (accepted)
10:54:53 filled 150 at 723.02 (the rule's 723.040), minute 84
11:38:04 breakeven: stop -> 723.04
15:02:55 closing: stop

inputs

tick: 0.006083614855411506
trend_up: 1