According to the data, five companies – Reliance Industries, L&T, HDFC Bank, GAIL and HDFC – have been major drivers for the Sensex during the year. Together these have accounted for 80 per cent of the Sensex rise during 2017. Of the 3,506-point gain by the Sensex, these five contributed 2,808 points.
Institutional flows
The current leg of the rally has been supported by strong foreign and domestic institutional buying. While foreign institutions have purchased equities worth Rs 42,886 crore, domestic mutual funds bought shares

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