Calvert Social Index Fund: I Shares

PERFORMANCE PROFILE AS OF 3/31/2013
Objective	Strategy	Morningstar Category: Large Growth	Morningstar Box
The Fund seeks to match the performance of the Calvert Social Index®, which measures the investment return of large- and mid-capitalization stocks.	The Fund employs a passive management strategy designed to track, as closely as possible, the performance of the Calvert Social Index. The Fund uses a replication index method, investing in the common stock of each company in the Index in about the same proportion as represented in the Index itself. The Calvert Social Index measures the performance of those companies that meet the sustainable and socially responsible investment criteria and that are selected from the universe of approximately the 1,000 largest U.S. companies, based on total market capitalization, included in the Dow Jones Total Market Index. The Index is reconstituted once a year based on an updated list of the 1000 largest U.S. companies, and is reviewed quarterly to adjust for sustainable and responsible investment criteria and other factors.	The Morningstar Style Box^TM reveals a fund's current investment strategy. For equity funds, the vertical axis shows the market capitalization of the stocks owned; the horizontal axis shows investment style (value, blend, or growth).

Ticker Symbol	CUSIP Number	Net Assets ($MILS)	# Of Holdings	Benchmark	Management
CISIX	131582751	$207.4	672	Calvert Social Index	Calvert Investment Management, Inc. (Advisor)

RISK MEASURES (3-Year)As of 3/31/2013
	FUND	BENCHMARK
STANDARD DEVIATION	6.48%	6.50%
ALPHA	-0.22%	0.00%
BETA	1.00	1.00
EXCESS RETURN	-0.33%	0.00%
R-SQUARED	99.96%	100.00%
TRACKING ERROR	0.13%	0.00%
INFORMATION RATIO	-2.58	0.00
SHARPE RATIO	3.21	3.26

Source: Zephyr StyleAdvisor using Morningstar^TM and/or Lipper data.

MARKET CAPITALIZATIONAs of 3/31/2013 ($ Millions)
	FUND	BENCHMARK
Weighted Average	87,210.5	86,770.6
Median	4,743.7	4,743.7
Weighted Median	42,355.5	42,355.5

Source: Analysis performed by FactSet.

TOP HOLDINGSAs of 3/31/2013
Holding	% of Net Assets
APPLE INC	4.44%
JOHNSON + JOHNSON	2.42%
INTL BUSINESS MACHINES CORP	2.38%
MICROSOFT CORP	2.29%
GOOGLE INC CL A	2.26%
PROCTER + GAMBLE CO/THE	2.25%
AT+T INC	2.14%
JPMORGAN CHASE + CO	1.95%
WELLS FARGO + CO	1.93%
COCA COLA CO/THE	1.65%
Total	23.71%

The Fund may or may not still invest in, and no action is recommended on, companies listed. For the most recently available information on the Fund's holdings, visit www.calvert.com.

ASSET ALLOCATION% of assets as of 3/31/2013
	Equity	Fixed Income	Cash
Calvert Social Index Fund	99.23%	0.00%	0.77%

Source: State Street Bank & Trust Company

VALUATIONKey Portfolio Statistics as of 3/31/2013
	1 YEAR P/E		3 YEAR EPS GROWTH		RETURN ON EQUITY	PRICE TO CASH FLOW	PRICE TO BOOK	Dividend Yield
	PROJECTED	TRAILING	PROJECTED	TRAILING	RETURN ON EQUITY	PRICE TO CASH FLOW	PRICE TO BOOK	Dividend Yield
Calvert Social Index Fund	14.7	16.5	12.5%	24.6%	19.7%	10.8	2.5	1.8
Calvert Social Index	14.7	16.5	12.5%	24.6%	19.7%	10.8	2.5	1.8

Source: Analysis performed by FactSet.

PERFORMANCE Average Annual Returns (%) for Period Ended 3/31/2013
	QTR	YTD	1 YEAR	3 YEARS	5 YEARS	10 YEARS	SINCE INCEPTION	INCEPTION DATE
I Shares	10.62	10.62	12.33	11.88	6.08	7.60	0.99	6/30/2000
Calvert Social Index	10.81	10.81	12.64	12.12	6.84	8.14	1.45
Lipper Multi-Cap Core Funds Index	10.74	10.74	14.19	11.32	5.68	9.06	3.22

The performance data quoted represents past performance, which does not guarantee future results. The investment return and principal value of an investment will fluctuate so that an investor’s shares, when redeemed, may be worth more or less than their original cost. Current performance may be higher or lower than the performance data quoted. Index reflects no deductions for fees or expenses. An investor cannot invest directly in an index. Visit www.calvert.com to obtain performance data current to the most recent month-end. Returns for periods of less than one year are not annualized.

PERFORMANCE ATTRIBUTIONRelative to the Russell 1000 Index for the quarter ending 3/31/2013

TOP CONTRIBUTORS BY SECTORQuarter ended 3/31/2013
Sector	Average Weight	Return	Contribution
Financials	17.91%	12.42%	2.21%
Health Care	12.10%	16.46%	1.93%
Consumer Discretionary	13.57%	12.04%	1.62%
Information Technology	29.23%	5.26%	1.59%
Consumer Staples	10.47%	15.19%	1.55%

TOP CONTRIBUTORS BY HOLDINGQuarter ended 3/31/2013
Holding	Average Weight	Return	Contribution
Johnson & Johnson	2.38%	17.24%	0.40%
Procter & Gamble Co.	2.31%	14.43%	0.33%
International Business Machines Corp.	2.44%	11.83%	0.29%
Google Inc. Cl A	2.36%	11.93%	0.28%
AT&T Inc.	2.28%	10.27%	0.24%

BOTTOM CONTRIBUTORS BY SECTORQuarter ended 3/31/2013
Sector	Average Weight	Return	Contribution
Materials	1.61%	8.93%	0.15%
Utilities	1.07%	15.09%	0.16%
Telecomm Services	3.14%	5.95%	0.20%
Energy	2.30%	14.83%	0.33%
Industrials	8.59%	12.31%	1.05%

BOTTOM CONTRIBUTORS BY HOLDINGQuarter ended 3/31/2013
Holding	Average Weight	Return	Contribution
Apple Inc.	5.01%	-16.49%	-1.02%
EMC Corp.	0.58%	-5.57%	-0.04%
Rackspace Hosting Inc.	0.09%	-32.03%	-0.03%
CenturyLink Inc.	0.27%	-8.80%	-0.02%
Capital One Financial Corp.	0.37%	-5.06%	-0.02%

Source: Analysis performed by FactSet. Equity holdings only. Return calculation is based on daily holding periods and excludes all fund expenses and trading costs. Portfolio weight is calculated as the average weight over the quarter.

The performance data quoted represents past performance, which does not guarantee future results. Current performance may differ from that shown. The statistical information above is taken from sources believed to be reliable but cannot be guaranteed as to accuracy.

10 BEST PERFORMERS FOR THE QUARTER as of 3/31/2013
Rank	Company	Industry	Return
1	Netflix Inc.	Consumer Discretionary	104.15%
2	Best Buy Co. Inc.	Consumer Discretionary	88.35%
3	Hewlett-Packard Co.	Information Technology	68.35%
4	Tempur-Pedic International Inc.	Consumer Discretionary	57.61%
5	Micron Technology Inc.	Information Technology	57.17%
6	Starz Liberty Capital Series A	Consumer Discretionary	53.60%
7	LinkedIn Corporation	Information Technology	53.34%
8	Seattle Genetics Inc.	Health Care	53.06%
9	Cheniere Energy Inc.	Energy	49.09%
10	Alaska Air Group Inc.	Industrials	48.43%

10 WORST PERFORMERS FOR THE QUARTER as of 3/31/2013
Rank	Company	Industry	Return
1	NII Holdings Inc.	Telecomm Services	-39.27%
2	Rackspace Hosting Inc.	Information Technology	-32.03%
3	VeriFone Systems Inc.	Information Technology	-30.32%
4	Riverbed Technology Inc.	Information Technology	-24.39%
5	Cirrus Logic Inc.	Information Technology	-21.47%
6	GrafTech International Ltd.	Industrials	-18.21%
7	VIVUS Inc.	Health Care	-18.03%
8	Garmin Ltd.	Consumer Discretionary	-18.01%
9	Ulta Salon Cosmetics & Frg Inc.	Consumer Discretionary	-17.39%
10	Apple Inc.	Information Technology	-16.49%

Investment in mutual funds involves risk, including possible loss of principal invested. You could lose money on your investment in the Fund or the Fund could underperform because of the following risks: the market prices of stocks held by the Fund may fall. An index fund has operating expenses; a market index does not. An index fund has operating expenses; a market index does not. Although expected to track its target index as closely as possible while satisfying its investment criteria, the Fund will not be able to match the performance of the index exactly. It is not possible to invest directly in an index. Large-cap companies may be unable to respond quickly to new competitive challenges, such as changes in technology, and also may not be able to attain the high growth rate of successful smaller companies, especially during periods of economic expansion.

Holdings are subject to change.

Net assets include all share classes.

Calvert funds are available at NAV for RIAs and Wrap Programs. Not all funds available at all firms.

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FOR INSTITUTIONAL INVESTOR AND BROKER/DEALER USE ONLY. NOT FOR PUBLIC DISTRIBUTION.

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