Zcash rebounded from recent lows as risk sentiment improved slightly following the fall in oil prices after Trump waived several Russian sanctions over the weekend. However, ZEC remains vulnerable to deteriorating macro conditions, with persistently elevated energy prices and recent growth concerns continuing to weigh on the crypto market.The upcoming NU7 network upgrade is approaching a key milestone, with developers expected to make a final decision on mainnet activation tomorrow. The upgrade targets November 5 and would drastically reduce block times, alongside changes to the network's sustainability mechanism. A confirmation of the November 5 rollout could be positive in the short-term, while testing problems or a delay could disappoint traders.Without further improvement in macro conditions, though. the recent rebound might struggle to sustain the momentum. The most important data to watch this week will be the US Flash PMIs on Friday to see whether growth concerns are justified. Stronger than expected data could ease those concerns and support ZEC in the short term, while a weak report could put renewed pressure on the cryptocurrency. ZCASH TECHNICAL ANALYSIS – DAILY TIMEFRAMEOn the daily chart, we can see that Zcashcouldn’t quite reach the key 1,031 as the price rebounded before touching that level. If we do get another pullback into the level, we can expect the buyers to step in, with a defined risk below the level, to position for a rally into the 2,000 level. The sellers, on the other hand, will look for a break lower to increase the bearish bets into the 800.00 level next.ZCASH TECHNICAL ANALYSIS – 4 HOUR TIMEFRAMEOn the 4 hour chart, we have a downward trendline defining the bearish momentum. We can expect the sellers to lean on it, with a defined risk above it, to keep pushing into new lows. The buyers, on the other hand, will look for a break higher to increase the bullish bets into the 2,000 level, with the 1,351 level as the first target. ZCASH TECHNICAL ANALYSIS – 1 HOUR TIMEFRAMEOn the 1 hour chart, there’s not much we can add here as the sellers have a better risk to reward setup around the downward trendline, while the buyers will need a breakout to open the door for new highs. The red lines define the average daily range for today.UPCOMING CATALYSTSOn Thursday we get the latest US Jobless Claims figures, while on Friday we conclude the week with the Flash US PMIs. This article was written by Giuseppe Dellamotta at investinglive.com.