Markets /SFK ProShares UltraShort Russell100 SFK Full chart Compare Add to watchlist Set alert Price alert · SFK Alert when the price is Price abovePrice below Price level Set alert All alert types No live quote for SFK yet. Overview Chart Financials FinancialsValuation & healthEarnings EarningsDividends & splitsAnalysts News Ownership Options More ComparisonSignalsTrend ScoreDiscussionNotesPositionsAlerts EarningsDividends & splits No earnings history Earnings data is not available for SFK.