Where each margin call line falls: 200 shares carried against a $10,000 debit
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 | trigger_price | market_value_at_trigger | equity_at_trigger |
|---|---|---|---|---|
| Fed call (50% initial) | 50 | 100 | 20000 | 10000 |
| House call (30% maintenance) | 30 | 71.43 | 14286 | 4286 |
| Exchange call (25% maintenance) | 25 | 66.67 | 13333 | 3333 |
- Rows × columns
- 3 × 5
- 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 | 3 distinct values | |
requirement_pct |
number | 25 to 50 | percent |
trigger_price |
number | 66.67 to 100 | US dollars |
market_value_at_trigger |
number | 13,333 to 20,000 | |
equity_at_trigger |
number | 3,333 to 10,000 |
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,
round(10000 / (1 - requirement_pct / 100) / 200, 2) AS trigger_price,
round(10000 / (1 - requirement_pct / 100)) AS market_value_at_trigger,
round(10000 / (1 - requirement_pct / 100) - 10000) AS equity_at_trigger
FROM
(
SELECT 'Fed call (50% initial)' AS call_type, 50 AS requirement_pct
UNION ALL
SELECT 'House call (30% maintenance)', 30
UNION ALL
SELECT 'Exchange call (25% maintenance)', 25
)
ORDER BY trigger_price DESC
Work with this data in your AI assistant
Opens ready to query, with this page's data. Free, no account.