Ewan Li

SPY · IBS on SPY and QQQ

Opened Sep 30, 2026, closed Oct 1, 2026, in DAILY.

The trade

Account
DAILY
Book
ibs
Symbol
SPY
Asset class
equity
Side
long
Exposure
long
Status
closed
Quantity
10
Entry price
762.53
Exit price
763.99
Exit by
exit
Book value at entry
$100,000.00
Record Trade journal
Cost model

Alpaca paper fills, with no commission. In the DAILY account, shares one sub-book buys and another sells at the same close meet inside the account at the official close, and every leg on the larger side gets one average of that price and Alpaca's fill. 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, without dividends; the P&L, the total with dividends, the return and the P&L in basis points of the sub-book are before it. An open trade is marked at the latest official close, before commission, with the dividends paid so far beside it.

Result

Entry value
$7,625.30
Exit value
$7,639.90
P&L
+$14.60
Dividends
$0.00
P&L with dividends
+$14.60
Costs
$0.14
Net P&L
+$14.46
Return
+0.19%
Of the book
+1.5 bp
R multiple
—
Held
1 session

Entry and exit

RoleDateAt (ET)SideQtyAskedPriceRule's priceCloseSlippageAgainst the closeHowWhyThe rule's numbers
entrySep 30, 2026—buy1065762.53766.080017762.630005−46.3 bp−1.3 bpsignallong entry
2 trigger numbers
close
766.0800170898438
reason
long entry
8 numbers
time
null
sleeve
ibs
netting
buys
276
sells
0
crossed
0
met_inside
false
under_price
766.0800170898438
account_order
sent
276
side
buy
filled
44
status
expired
at_limit
null
at_market
null
avg_price
762.53
bp_vs_close
−1.3113158697175553
orders_sent
null
snapshot_last_bar
null
final_close_agrees
true
exitOct 1, 2026—sell1010763.98999764.809998763.98999+10.7 bp0.0 bpsignalexit
2 trigger numbers
close
764.8099975585938
reason
exit
7 numbers
time
close
sleeve
ibs
netting
buys
122
sells
10
crossed
10
met_inside
true
under_price
764.8099975585938
snapshot_last_bar
null
final_close_agrees
false

Path while held

Span
1 session
High
765.650024 on Oct 1, 2026
Low
758.789978 on Oct 1, 2026
Best point (MFE)
+0.41%
Worst point (MAE)
−0.49%
Bars from
public daily bars

Notes

IBS on SPY and QQQ

  • 2026-09-30: bought 10 of 65; the rest dropped