Hindalco Industries shares turned crimson today after a few brokerage firms highlighted their cautious stance on the stock. The stock was trading 0.7% lower on the NSE at 9:48 AM. Investec downgraded its rating on Hindalco to ‘hold’ from ‘buy’ and cut its target price by 5% to Rs 730 apiece. However, this still implies an upside of over 10% from the stock's previous closing price on the NSE. The brokerage firm cited tariff-related headwinds for Novelis, among other reasons for the downgrade.