Ewan Li

VST · S-C C1 iron butterfly, exploration

Opened Oct 2, 2026, in MA.

The trade

Account
MA
Book
exploration
Symbol
VST
Asset class
option structure
Side
short
Exposure
neutral
Status
open
Closed
—
Quantity
1
Entry price
13.224904
Exit price
—
Exit by
—
Book value at entry
—
Record GitHub ledger
Cost model

half of each leg's spread plus $0.65 a contract at entry, the spread quoted from 15:00 to 16:00 ET or, for a wing priced by model, the stock's median option spread over the 20 sessions before, at least 5%; nothing at expiry

Entry and exit

RoleDateAt (ET)SideQtyAskedPriceRule's priceCloseSlippageAgainst the closeHowWhyThe rule's numbers
entryOct 2, 2026—sell1—13.224904————late windowF3
4 trigger numbers
rank
null
verdict
F3
cap_pass
true
cap_reason
null
13 numbers
k
140
k_dn
105
k_up
175
close
140.02
iv30d
0.443778548742282
sector
Utilities
dte_cal
28
marketcap
46905018501
sigma_hold
17.21032066924011
mean_spread
0.0616362859375
model_entry
true
entry_cost_usd
47.62726342191204
entry_tier_max
3

Legs

ContractRightStrikeExpirySideQtyEntryExitFacts
VST261030C00140000call140.00Oct 30, 2026short16.361406—
4 numbers
exit_tier
null
entry_tier
1
entry_source
print_vwap
entry_spread
0.066211171875
VST261030P00140000put140.00Oct 30, 2026short17.502—
4 numbers
exit_tier
null
entry_tier
1
entry_source
print_vwap
entry_spread
0.0570614
VST261030C00175000call175.00Oct 30, 2026long10.593832—
4 numbers
exit_tier
null
entry_tier
3
entry_source
model
entry_spread
0.08030432500000001
VST261030P00105000put105.00Oct 30, 2026long10.044671—
4 numbers
exit_tier
null
entry_tier
3
entry_source
model
entry_spread
0.08030432500000001

Notes

variant
C1
risk_usd
2177.5095886127683
graded_at
null
policy_id
sc-1.0
structure
IB
max_loss_usd
2177.5095886127683
stress_loss_usd
null