The $65 close: what each maintenance call demands, met by deposit or by sale
Answered against 22 years of US equities and 12 years of US options data and published with the query that produced it. This result is stored as of 2026-09-12, from Fed Call vs House Call vs Exchange Call.
| call_type | requirement_pct | market_value_usd | equity_usd | required_equity_usd | call_usd | sale_to_clear_usd |
|---|---|---|---|---|---|---|
| House call (30%) | 30 | 13000 | 3000 | 3900 | 900 | 3000 |
| Exchange call (25%) | 25 | 13000 | 3000 | 3250 | 250 | 1000 |
- Rows × columns
- 2 × 7
- Computed
- Completeness
- No missing values
- Source
- US exchange, SIP and OPRA market data
- Licence
- Strasmore terms · free, no signup
What each column holds
| Column | Type | Range | Notes |
|---|---|---|---|
call_type |
text | 2 distinct values (Exchange call (25%), House call (30%)) | |
requirement_pct |
number | 25 to 30 | percent |
market_value_usd |
number | every row is 13,000 | US dollars |
equity_usd |
number | every row is 3,000 | US dollars |
required_equity_usd |
number | 3,250 to 3,900 | US dollars |
call_usd |
number | 250 to 900 | US dollars |
sale_to_clear_usd |
number | 1,000 to 3,000 | US dollars |
Computed from Strasmore's warehouse of US exchange, SIP and OPRA market data. Equity prices are delayed; options greeks and implied volatility are end-of-day. This result is stored, not recomputed on load — it is exactly the numbers that were returned on , and the query below is what returned them.
Run it yourself
This is the exact query behind the result above. Change a ticker, a date or a column and run it against the warehouse — no account, no key. The no-signup tier is smaller than the one this page was computed on; a query that reaches past it comes back saying which plan runs it.
SELECT
call_type,
requirement_pct,
market_value_usd,
equity_usd,
required_equity_usd,
required_equity_usd - equity_usd AS call_usd,
round((required_equity_usd - equity_usd) / (requirement_pct / 100)) AS sale_to_clear_usd
FROM
(
SELECT
call_type,
requirement_pct,
200 * 65 AS market_value_usd,
200 * 65 - 10000 AS equity_usd,
round(200 * 65 * requirement_pct / 100) AS required_equity_usd
FROM
(
SELECT 'House call (30%)' AS call_type, 30 AS requirement_pct
UNION ALL
SELECT 'Exchange call (25%)', 25
)
)
ORDER BY call_usd DESC
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