As competition in the property portal space heats up, and on the back of a 54% gain in the share price, the time may have come for investors in Rightmove to move on, Credit Suisse believes.Nonetheless, the Swiss broker continues to like the sector, both in terms of the cyclical and structural growth stories. Even so, it believes the level of the company's current valuation now looks fair, as it lowered his recommendation on the shares to 'neutral' from 'outperform'. However, the price target has been lifted to 3,220p from 2,700p.Currency headwinds buffeted Spirax Sarco's profitability on a pre-tax basis, but analysts at Investec continue to see clear sailing ahead.The broker said: "Today's news has all of Spirax's typically positive characteristics and investors should be very content with the group's progress. We expect estimates to rise a little and there will also be upward pressure on the share valuation." Investec placed its recommendation and target price on the stock "under review".Life insurer Aviva's latest full-year results provided a small beat with respect to consensus on nearly every key metric, analysts at Panmure Gordon mused.That drove the firm's IFRS net asset value figure to 274p per share, ahead of the broker's estimate of 240p. Analyst Barrie Cornes maintained his target price of 660p and 'buy' recommendation on the shares.