机构介绍：Zacks Investment Research创立于1978年，是一家位于芝加哥的证券研究及资产管理机构，专为机构投资者提供用于预测美国公司股价的定量模型。随着公司产品线的逐步扩张，公司现也向个人投资者提供各类投资相关的信息服务和软件工具，包括公司评级体系核心产品Zacks Rank和Zacks风格评分（Zacks Style Score）等。
股市上周收涨，目前已连涨三周。 $标普500指数(.INX)$ 、 $纳斯达克综合指数(.IXIC)$ 和 $罗素2000指数(RUT)$ 全部创下历史新高。
道指连续8个季度称雄，取得了里程碑式的成绩，令人印象深刻。上次有这样的表现还是在20年前。道指也实现了连续8个季度的涨势，而纳指目前则是5个季度。
在这些上周被打破的记录当中，以罗素2000指数向上突破的势头最让我振奋。小市值股票风险性更高，它们的“破围”给市场投下了强劲而充满信心的一票。这表明投资者乐于承担更大的风险，并且被明确视为“牛市将至”的信号。
对减税、健壮坚韧的GDP数据的追捧，对另一个盈利财报季的乐观情绪（市场通常会在这段时间上行），都在驱动着市场不断向上。无需多言，我看多后市，而且我在期盼着这周出现更多的绿色箭头。
明天见，
Kevin Matras
Zacks Investment Research 执行副总裁
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免责声明：上述简报中的内容仅代表作者和/或Zacks Investment Research的观点，仅供学习参考，译者不对其中讨论的投资、交易或交易策略进行任何背书或推荐。本材料仅作信息提供之目的，不是也不应被视为任何证券的出售要约或购买要约邀请。材料中讨论的一般市场活动、行业或板块趋势、或其他广泛的经济或政治形势均不应被视为研究或投资建议。其中提及的特定证券、商品、货币或其他产品均不构成推荐购买、出售或持有该等投资的建议。本材料没有也不旨在考虑个别客户的特定财务状况、投资目标或要求。在根据本材料采取行动之前，请先考虑其是否适合自己的具体情况，并在必要时寻求专业建议。
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Markets Breaking Out and Breaking Records
The markets closed higher last week, making it three weeks in a row of gains. The S&P, the Nasdaq, and the Russell 2000 Small-Cap Index made new all-time highs in the process.
The Dow also achieved an impressive milestone putting together an 8 quarter winning streak. The last time they did this was 20 years ago. The S&P is also on an 8 quarter winning streak, while the Nasdaq is currently up 5 quarters in a row.
Amidst all of the broken records last week, the most exciting thing to me was the convincing breakout of the Russell 2000 Small-Cap Index. A breakout in the more risky small-cap stocks is a strong vote of confidence for the market. This shows a willingness for investors to take on more risk and is definitely considered a bullish sign of things to come.
Excitement over tax cuts, a robust GDP reading, and optimism for another profitable earnings season (markets typically go up during this time), has the market powering higher. Needless to say, my outlook for the market is bullish. And I'm expecting more green arrows again this week.
See you tomorrow,
Kevin Matras
Executive Vice President, Zacks Investment Research