Build Better Backtests with a
Historical Options Chain API使用历史期权链 API
构建可靠回测
Retrieve past chain snapshots, normalize contracts, verify timestamps, and keep future information out of every options backtest.
获取历史期权链快照、标准化合约并核验时间戳，防止未来信息进入期权回测。
Quick answer: what a historical options chain API does核心摘要：历史期权链 API 能做什么
A historical options chain API returns the calls and puts available for an underlying at a past observation time. It reconstructs the expirations and strikes a strategy could have seen, with quotes, volume, open interest, implied volatility, and sometimes Greeks. Reliable use requires exact timestamps and expired-contract coverage.
历史期权链 API 返回某个标的在过去观察时点可获得的看涨与看跌合约，还原策略当时能够看到的到期日与行权价，并可包含报价、成交量、未平仓量、隐含波动率及希腊值。可靠使用需要准确的时间戳和已到期合约覆盖。
Volatility research, strike selection, spread simulation, and point-in-time backtests.
End-of-day chains cannot reproduce intraday decisions. Match the interval to the strategy clock.
Corporate actions alter strikes or multipliers. Preserve adjustment metadata.
适合波动率研究、行权价选择、价差模拟与时点化回测。
日终期权链无法复现日内决策。快照间隔应与策略时钟匹配。
公司行动会改变行权价或合约乘数。应保留调整元数据。
What each historical chain snapshot should include每份历史期权链快照应包含什么
| Field字段 | What it tells you含义 | What to verify需要核对 |
|---|---|---|
| Contract identity合约标识 | Underlying, call or put, strike, expiration, and contract symbol.标的、看涨或看跌、行权价、到期日与合约代码。 | Symbology changes and adjusted contracts.代码规则变化与调整合约。 |
| Quotes and trades报价与成交 | Bid, ask, sizes, last price, volume, and open interest.买价、卖价、挂单量、最新价、成交量与未平仓量。 | Snapshot frequency, crossed markets, and stale quotes.快照频率、买卖价倒挂与过时报价。 |
| Greeks and IV希腊值与隐含波动率 | Delta, gamma, theta, vega, rho, and implied volatility.Delta、Gamma、Theta、Vega、Rho 与隐含波动率。 | Model, interest-rate input, dividend assumptions, and calculation time.定价模型、利率输入、分红假设与计算时间。 |
| Timestamps时间戳 | Observation time, trade time, and quote update time.观测时间、成交时间与报价更新时间。 | Timezone, market session, and end-of-day cutoff.时区、交易时段与日终截点。 |
How to evaluate a historical options chain API如何评估历史期权链 API
Check underlyings, exchanges, expirations, strikes, expired contracts, earliest date, and timestamp meaning.
Quotes are observations; Greeks and IV are model outputs. Record the model, rate, dividend assumption, and calculation time.
Count calls and puts by expiration, identify missing strikes, flag abnormal markets, and verify the underlying price.
Convert limits into symbols, dates, expirations, retries, and backfill time. Store raw responses for reproducibility.
Confirm whether the timestamp represents capture time, last update, or end-of-day publication and whether quotes inside one chain share the same observation cutoff.
Open interest is commonly a daily field with a different publication schedule from quotes and volume. Store its business date and availability time separately.
Historical research needs contracts that disappeared and deliverables changed by corporate actions. A current contract master cannot reconstruct the past.
核对标的、交易所、到期日、行权价、已到期合约、最早日期和时间戳含义。
报价属于市场观察值；希腊值与隐含波动率属于模型输出。应记录模型、利率、分红假设和计算时间。
按到期日统计看涨与看跌合约，识别缺失行权价，标记异常行情并核对标的资产价格。
把限制换算为标的、日期、到期日、重试和回填时间，并保存原始响应以便复现。
确认时间戳代表采集时刻、最后更新时间还是日终发布时间，并判断同一期权链中的报价是否使用一致的观察截点。
未平仓量通常是日频字段，发布时间与报价、成交量不同。应分别保存其业务日期和实际可用时间。
历史研究需要后来消失的合约，以及公司行动改变交割物的系列。今天的合约主表无法还原过去。
A point-in-time workflow for options backtesting面向期权回测的时点化流程
- Define the decision time, market session, universe, expiration window, and strike rule.
- Request the nearest prior snapshot. Reject future quotes and document missing intervals.
- Store the raw response, then normalize identity, prices, multipliers, and timezones.
- Model fills from contemporaneous bid and ask data with explicit slippage.
- Join the underlying price, rate, dividend assumption, and corporate-action state available at the same decision time.
- Record missing contracts and do not backfill them from a later chain; absence is part of the point-in-time state.
- Freeze raw snapshots and derived analytics separately so a model change does not rewrite observed market history.
- 定义决策时间、交易时段、标的范围、到期窗口与行权价规则。
- 请求不晚于决策时间的最近快照，拒绝未来报价并记录缺失区间。
- 保存原始响应，再标准化合约标识、价格、合约乘数与时区。
- 使用同一时点的买卖价并设置明确的滑点来模拟成交。
- 关联同一决策时点可获得的标的价格、利率、分红假设和公司行动状态。
- 记录缺失合约，不能从之后的期权链补回；当时未出现本身就是时点状态的一部分。
- 分别冻结原始快照和衍生指标，避免模型变化改写已经观察到的市场历史。
Use QVeris to discover options data capabilities用 QVeris 发现期权数据能力
The verified QVeris Options Chain tool is for chain discovery, but it does not by itself prove historical point-in-time coverage. Use the QVeris documentation and Playground while evaluating candidates, then confirm expired contracts, snapshot times, and historical rights directly with the provider.
经过核实的 QVeris 期权链工具适合发现期权链能力，但它本身不能证明供应商具备历史时点覆盖。评估候选项时可参考 QVeris 文档并使用 Playground，之后仍需向供应商核实已到期合约、快照时间和历史数据权限。
FAQ常见问题
Yes, if it preserves expired contracts and snapshots. Check pagination and expiration filters.
Only when calculation time and assumptions are documented. Store raw quotes for reproducibility.
No. It omits expired contracts and cannot recover old quotes, open interest, adjusted deliverables, or the contracts visible at the historical decision time.
Not as observed market data. You may model missing values separately, but preserve the missingness and never present estimates as original quotes.
可以，但前提是服务商保存已到期合约与快照。还应检查分页和到期日筛选方式。
只有在计算时间与模型假设有明确记录时才可靠。应保存原始报价以便复现。
不能。当前链缺少已到期合约，也无法恢复过去的报价、未平仓量、调整后交割物，以及历史决策时点真正可见的合约集合。
不能把插值当作市场观察值。可以单独建立估算模型，但必须保留缺失状态，也不能把估算结果包装成原始报价。
References and next steps参考资料与下一步
Alpha Vantage options documentation
Massive options documentation