import yfinance as yf

def get_multi_stock_data(tickers):
    results = []

    for ticker in tickers:
        try:
            stock = yf.Ticker(ticker)
            info = stock.info

            # Get historical data
            hist_1mo = stock.history(period="1mo")['Close']
            hist_3mo = stock.history(period="3mo")['Close']
            hist_6mo = stock.history(period="6mo")['Close']
            hist_12mo = stock.history(period="1y")['Close']

            def perf_change(series):
                if series.empty:
                    return None
                return round(((series[-1] - series[0]) / series[0]) * 100, 2)

            data = {
                "ticker": ticker,
                "company_name": info.get("longName", "N/A"),
                "current_price": info.get("currentPrice", "N/A"),
                "pe_ratio": info.get("trailingPE", "N/A"),
                "market_cap": info.get("marketCap", "N/A"),
                "volume": info.get("volume", "N/A"),
                "52_week_high": info.get("fiftyTwoWeekHigh", "N/A"),
                "52_week_low": info.get("fiftyTwoWeekLow", "N/A"),
                "performance": {
                    "1_month": perf_change(hist_1mo),
                    "3_month": perf_change(hist_3mo),
                    "6_month": perf_change(hist_6mo),
                    "12_month": perf_change(hist_12mo)
                }
            }

            results.append(data)

        except Exception as e:
            results.append({"ticker": ticker, "error": str(e)})

    return results