Investors with significant funds have taken a bearish position in Halliburton (NYSE:HAL), a development that retail traders should be aware of. This was brought to our attention today through our monitoring of publicly accessible options data at Benzinga. The exact nature of these investors remains a mystery, but such a major move in HAL usually indicates foreknowledge of upcoming events. Today, Benzinga’s options scanner identified 10 options transactions for Halliburton. This is an unusual occurrence. The sentiment among these large-scale traders is mixed, with 40% being bullish and 60% bear…