Why is S&P 500 up but SXR8 ETF down?

Hey all, quick question:

• S&P 500 (USD): Feb 3 = 592.67, Today = 620.34 (+4.7%)
• SXR8 (EUR): Feb 3 = 616.84, Today = 567.08 (-8.1%)
• USD/EUR rate: Feb 3 = ~0.86, Today = ~0.853 (-0.8%)

If SXR8 tracks the S&P 500, why is it down so much in euro terms while the S&P 500 is up? Shouldn’t it roughly follow the index? Currency differences explain a bit but not all of it.

Any ideas? Thanks!