Do Python Financial Libraries Provide Real-Time Market Data?

2025-07-03 01:04:49 270

4 Answers

Vera
Vera
2025-07-05 02:04:01
I've explored Python's financial libraries extensively. While libraries like 'yfinance' and 'ccxt' offer a wealth of financial data, real-time market data isn't always straightforward. 'yfinance' provides near-real-time data with slight delays, which is fine for most retail traders. For true real-time data, you might need APIs like those from Alpaca or Interactive Brokers, which are more robust but often require subscriptions.

Another angle is using 'pandas_datareader' which pulls data from sources like Yahoo Finance, but it's limited to delayed data. If you're serious about real-time data, consider websockets with libraries like 'ccxt' for cryptocurrency markets or proprietary APIs for stocks. It's a bit of a rabbit hole, but totally worth it if you're building algo-trading systems.
Yara
Yara
2025-07-06 06:11:16
I use Python for financial analysis daily, and the short answer is: it depends. Libraries like 'yfinance' give you delayed data, which works for backtesting but not live trading. For real-time, you'll need specialized APIs. I've had success with 'alpaca-trade-api' for US stocks—it’s free for paper trading and offers real-time streams. Cryptocurrency traders can rely on 'ccxt', which supports websockets for live price updates. The key is to match the library to your needs and budget.
Jack
Jack
2025-07-07 14:03:14
Most python financial libraries don’t offer real-time data out of the box. 'yfinance' is popular but delayed. For live data, you’ll need APIs like those from brokers or services like Alpha Vantage. It’s a trade-off between ease of use and immediacy. If you’re building a trading bot, investing in a dedicated API is often necessary.
George
George
2025-07-07 19:42:02
Python’s financial libraries are fantastic for historical data, but real-time feeds are trickier. I’ve tried 'yfinance' and 'pandas_datareader', and while they’re great for end-of-day data, they lag for live markets. For true real-time, I switched to broker APIs like TD Ameritrade’s or Interactive Brokers’. They require more setup but deliver the immediacy you need. If you’re just experimenting, the free tiers of 'alpaca-trade-api' or 'ccxt' might suffice.
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