Cramer takes a closer look to find out from the fundamentals but I prefer the charts.
In the daily bar chart of UNP, below, we can see that prices have been under pressure the past several days. Prices gapped below the cresting 50-day moving average line. The rising 200-day moving average line is now not that far below the market and could be tested in the days ahead.
The On-Balance-Volume (OBV) line shows toppy action since the middle of September and trading volume has increased during the recent decline. The Moving Average Convergence Divergence (MACD) oscillator is crossing the zero line for an outright sell signal.