'3 Ps' Supporting Massive Market Speculation [SPDR S&P 500 ETF Trust, ProShares Short S&P500 (ETF), ProShares Ultra S&P500 (ETF), ProShares Short QQQ (ETF), iShares S&P 500 Index (ETF), Vanguard 500 Index Fund, ProShares UltraShort QQQ (ETF)] - Seeking Alpha

'3 Ps' Supporting Massive Market Speculation [SPDR S&P 500 ETF Trust, ProShares Short S&P500 (ETF), ProShares Ultra S&P500 (ETF), ProShares Short QQQ (ETF), iShares S&P 500 Index (ETF), Vanguard 500 Index Fund, ProShares UltraShort QQQ (ETF)] - Seeking Alpha

This is an outstanding article about why we are near a stock market top.  Amazingly, some fundamentals are still okay, and interest rates are still low.  These things are holding up the current market. However, eventually there will be no more new buyers, and stocks will fall.  We should be very cautious over the next few months, and cash may be the best asset to hold very soon.