。
Price swings triggered the financial crisis.
Literal
Prices [genitive-の] rising-and-falling [subject-が] financial crisis [object-を] triggered.
A compact cause-and-effect statement. 上がり下がり ('rising and falling') is a paired compound noun from the verb stems of 上がる and 下がる — Japanese productively forms such compound nouns from verb-stem pairs to express a fluctuating process: 出入り (coming and going), 乗り降り (getting on and off), 読み書き (reading and writing). 引き起こす ('to cause, bring about, trigger') is itself a compound verb: 引く ('pull') + 起こす ('cause to arise'). The combined meaning is something like 'pull something into arising,' figuratively 'trigger,' 'set off.' Common with negative outcomes (事故を引き起こす, 問題を引き起こす).