What we learned this week and our investing strategy into next week

American Eagle clothing and accessories retailer American Eagle store seen in Tokyo.
Budrul Chukrut | SOPA Images | Light Rocket | Getty Images

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The S&P 500 edged higher this week and moved within striking distance of its all-time highs while the tech-heavy Nasdaq notched a new record. The more economically sensitive Dow Jones Industrial Average pulled back, however.