I use the following, taken directly from the Finance::Quote site, to check securities. If I attempt to check a mutual fund, such as JAVLX, I get the error:

Use of uninitialized value in printf at quote.pl line67.

Any thoughts? Could it be the length of the stock symbol?

#!/usr/bin/perl -w
#
# Stock-ticker program.  
# Can look up stocks from multiple
# markets and return the results in 
# local currency.

use strict;
use Finance::Quote;

my $CURRENCY = "USD";    # Set preferred currency here, or empty strin
+g for
            # no conversion.

# The stocks array contains a set of array-references.  Each reference
# has the market as the first element, and a set of stocks thereafter.

my @STOCKS = ([qw/australia CML ITE BHP/],
          [qw/usa MSFT RHAT LNUX AW UDW VICM CSCO NWRE MLM CBYI ROK HD
+I LU AMZN INRG LMT LOR DELL INTC CCI QQQ YHOO USAI LVLT SPW AZPN ITWO
+ AKLM/]
         );

# These define the format.  The first item in each pair is the label,
# the second is the printf-style formatting, the third is the width
# of the field (used in printing headers).

my @labels = (["name",  "%12s",  15],
          ["date",  "%11s",  11], 
          ["time",  "%10s",  11],
          ["last",  "%8.2f",  8],
          ["high",  "%8.2f",  8], 
          ["low",   "%8.2f",  8],
          ["close", "%8.2f",  8], 
          ["volume","%10d",  10]);

my $REFRESH = 120;    # Seconds between refresh.

# --- END CONFIG SECTION ---

my $quoter = Finance::Quote->new();
my $clear  = `clear`;            # So we can clear the screen.

# Build our header.

my $header = "\t\t\t\tSTOCK REPORT" .($CURRENCY ? " ($CURRENCY)" : "")
+ ."\n\n";

foreach my $tuple (@labels) {
    my ($name, undef, $width) = @$tuple;
    $header .= sprintf("%".$width."s",uc($name));
}

$header .= "\n".("-"x79)."\n";

# Header is all built.  Looks beautiful.

$quoter->set_currency($CURRENCY) if $CURRENCY;    # Set default curren
+cy.

for (;;) {    # For ever.
    print $clear,$header;

    foreach my $stockset (@STOCKS) {
        my ($exchange, @symbols) = @$stockset;
        my %info = $quoter->fetch($exchange,@symbols);

        foreach my $symbol (@symbols) {
            next unless $info{$symbol,"success"}; # Skip failures.
            foreach my $tuple (@labels) {
                my ($label,$format) = @$tuple;
                printf $format,$info{$symbol,$label};
            }
            print "\n";
        }
    }

    sleep($REFRESH);
}

__END__
[download]