# ProShares - Big Data Refiners ETF (DAT) vs State Street SPDR S&P 500 ETF Trust (SPY) · total-return overlay

LOPJLB holding-return compare (5Y). Dividends and splits. Each path starts at 0% from the first adjusted close in the window.

ProShares - Big Data Refiners ETF (DAT) vs State Street SPDR S&P 500 ETF Trust (SPY) total return over 5Y: DAT +24.20%, SPY +81.53%. As of Oct 20, 2026. Research only.

- Interactive: https://www.lopjlb.com/vs/DAT/SPY
- API: `GET /bff/api/bigfive/compare-series?symbols=DAT%2CSPY&range=5y`

## Window

| Symbol | Window % | Worst drawdown | YTD |
|---|---:|---:|---:|
| DAT | +24.20% | -56.22% | +20.33% |
| SPY | +81.53% | -24.49% | +13.45% |

## Periods (calendar lookback)

| Symbol | 1Y | 2Y | 3Y | 5Y |
|---|---:|---:|---:|---:|
| DAT | +11.89% | +41.78% | +97.52% | +24.20% |
| SPY | +15.80% | +34.81% | +89.35% | +81.53% |

## Annual

| Year | DAT | SPY |
|---|---:|---:|
| YTD | +20.33% | +13.45% |
| 2025 | +3.13% | +18.01% |
| 2024 | +37.31% | +25.59% |
| 2023 | +53.02% | +26.73% |
| 2022 | -43.47% | -18.64% |
| 2021 | -9.71% | +5.19% |

---

Research context only. Not personalized investment advice.