Quote from Technician:
What can we infer when near the end of the da?
At the end of a 'trading day,' Intra-day Margin requirements end, and Overnight Margin requirements begin. As such, we see trades executed, not out of a trader's perception of market sentiment, but out of an arbitrary setting - margin levels. Learn to 'see' through this period and you'll understand what the actual market sentiment (of that time period) has provided.
- Spydertrader