Adjusted Q2 2011 US e-commerce sales increased 3% from Q1 2011, according to [pdf] estimates from the US Census Bureau. Adjusted for seasonal variation but not for price changes, US retail e-commerce sales in Q2 2011 totaled $47.5 billion, up from a revised $46.1 billion the previous quarter.
YOY E-commerce Sales Grow 17.6%
In addition, this figure represented an increase of 17.6% from about $40.4 billion in Q1 2010. E-commerce sales in Q2 2011 accounted for 4.6% of total adjusted quarterly retail spending of about $1.04 trillion.
Adjusted Retail E-commerce Sales Show Continuing Growth
Adjusted for seasonal variation, retail e-commerce sales have shown a steady quarter-over-quarter growth pattern for the past year. In Q1 2011, retail e-commerce sales grew 3.6%, from about $44.5 billion, while in Q4 2010, retail e-commerce sales grew 5%, from about $42.4 billion, and also grew 4.9% in Q3 2010, from about $40.5 billion.
Year-over-year growth was also steady. Q1 2011 retail e-commerce sales grew 17.8%, preceded by quarters with year-over-growth rates of 16.3%, 14.8% and 15%, respectively.
Unadjusted E-commerce Sales Show Varied Results
Removing seasonal adjustments, retail e-commerce sales have followed a dramatically different path in the past year quarter-over-quarter but similar results year-over-year. Unadjusted Q2 2011 e-commerce sales totaled about $44.2 billion, a 9.9% increase from $43.7 billion the prior quarter but up 17.2% from the prior year.
Similarly, Q1 2011 e-commerce sales totaled about $43.7 billion, a 17.9% decrease from $53.2 billion the prior quarter but up 17.6% from the prior year. This $53.2 billion in Q4 2010 was in turn a 35.7% increase from $39.2 billion in Q3 2010 and a 16.5% year-over-year increase.
Meanwhile, unadjusted Q3 2010 retail e-commerce sales were up 4% from $37.7 billion the prior quarter and up 14.9% from the prior year. Q2 2010 unadjusted retail e-commerce sales were up 1.5% from $37.2 billion the previous quarter and up 14.6% from the prior year.
comScore: Q2 Online Retail Spending Reaches $37.5B
US online retail (non-travel) spending reached $37.5 billion during Q2 2011, according to estimates from comScore. This marks the seventh consecutive quarter of positive year-over-year growth and third consecutive quarter of double-digit (14%) growth rates.